<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+15.480x+3T2021+type@vertical+block@b8e540ab29b9428b967e7c4289385e8a" data-block-type="vertical" data-graded="False" data-course-id="course-v1:MITx+15.480x+3T2021" data-has-score="False" data-request-token="963ec97084bc11ef8f28023e4242adeb" data-init="VerticalStudentView" data-runtime-class="LmsRuntime" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">Balanced Two-Arm RCT</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+15.480x+3T2021+type@video+block@4ba1c45aed2046708f15138e8094d30e">
<div class="xblock xblock-public_view xblock-public_view-video xmodule_display xmodule_VideoBlock" data-usage-id="block-v1:MITx+15.480x+3T2021+type@video+block@4ba1c45aed2046708f15138e8094d30e" data-block-type="video" data-graded="False" data-course-id="course-v1:MITx+15.480x+3T2021" data-has-score="False" data-request-token="963ec97084bc11ef8f28023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Video"}
</script>
<h3 class="hd hd-2">Balanced Two-Arm RCT</h3>
<div
id="video_4ba1c45aed2046708f15138e8094d30e"
class="video closed"
data-metadata='{"end": 0.0, "speed": null, "transcriptAvailableTranslationsUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@4ba1c45aed2046708f15138e8094d30e/handler/transcript/available_translations", "saveStateUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@4ba1c45aed2046708f15138e8094d30e/handler/xmodule_handler/save_user_state", "poster": "https://mitx-edx-video-meta-storage.s3.amazonaws.com/media/video-images/3d55e7b702cb49afabdb099abf58b9be.png?AWSAccessKeyId=ASIA4QDFFSURQHZB55UW&Expires=1728313400&x-amz-security-token=IQoJb3JpZ2luX2VjENf%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCXVzLWVhc3QtMSJGMEQCID8qjkOEWGwNqLfv6XpQOm0MquEDWYUhAFFlO0JddfjIAiBmUz5fbu9d%2FYCT54GuuYtg%2FQ%2B9pDSaGOCyTn%2BKN05wNiq6BQgwEAMaDDg1OTIwNTYzNzQxMSIMkHCzU6Jwe5nGlsRCKpcFxIkrlqItAI2vSdfRrOvz7Os8xkTpebh40GMtwer1BjgYqh982%2F4yW7SyrenLxrWX3GEkj6Vv0f0sfmeWLj52WuMBRP4ZpTeqTrGw%2B%2Bqj5EEmkD8mb3i8sxERch6MAnvJs9fQkAReXnT3wG4GXYuuzYi1a7qEzkur%2FMXKtwdFHg%2B%2F4bTcnqdE9u8hQIG0dt6MCbInqqrWo%2FsU0teKS22SCt27r%2FJ3yO2zx4HunqThqv0RjxG3jKeKi4ucGNFZbfc20DToqZuOCuC9E0Qq3AhrE6jKLepvprP0FfR4J8JrcbQJelFGuazYXLSC8FWfVXOn722TD5S105OSY%2FUmlTuhvrjgiGFp1zgPy4qCh2Rb5W38oRAClMNtFUwleaHekUAy3Khg5ldYInoM74gnh189aR2IQUxJeiGc5SYzxbUrllj%2B61iItPwQzhatSn%2Fjw6DtA9aIuLtL3n2W1hC0V7OeHcKcC0jmeiRerA%2BeuE4Q7hPQYJJqXA4KGMJUFAexROCqSVaZbFqTtwIzv%2BnfsmWqqVK9TCTmbqhlFD6%2FEh1VdfqdaQDVBCD5TyDMX4Y8uhExQMf2RtWjlquj4fSCFqFrdHbJDBq9UtVbnSZjifsHC%2FeoYCM9BqHXtdAmGgeOkNzGobBD%2FzNMNINtEL%2BaPC68OfLCM1DvE%2BfG%2B2OgruUWSgMJKdkRSreLzpBVj5HIUwniY6ptvE%2FjEZXF0w7mqOpBY4yhKOxxXR%2Fx4rYwoIPROT%2FnblmeGNQxZIcvw2Qgi4fKb3xdZDkAi9sjml1pQ8BJrlXEFmj4uGw0tCH%2FMRhfUgl2mt4%2BfjNODZX5ENw10WLpnEO84%2FnzfHsY33iVJa8elEmGgEXqPj3p6AVOmoP3oshNIqJlJIg2MIjmj7gGOrIByj542rK1EBCDcMLZ4oL3SlBLUBRo6N2jAX%2FLpz3BC7OWbMPxfCMCZksnOxPvTb2ab0IZaWFvHVw8GP0uN31U%2BiCfo8lQL6UL6mPoW3KcSYPQwZky5mYsc%2B1a0OzbCQ8GzTos0oBl0HDP5YapcremW11QbPIB%2FWE932QhA1UTLoApwT1FkD0TijiTy%2BamZvyP1Q4QgoeBGx1pTrJCO2KnYutHfWsjfoYkvtKZRxbIr4pomA%3D%3D&Signature=Uzbf0U90BBEoR6x8A0gbFPk8LHg%3D", "saveStateEnabled": false, "completionPercentage": 0.95, "captionDataDir": null, "lmsRootURL": "https://openlearninglibrary.mit.edu", "sources": ["https://d2f1egay8yehza.cloudfront.net/MITx15.482x-V009600_DTH.mp4", "https://d2f1egay8yehza.cloudfront.net/MITx15.482x-V009600/MITx15.482x-V009600.m3u8"], "ytApiUrl": "https://www.youtube.com/iframe_api", "ytMetadataEndpoint": "", "transcriptLanguage": "en", "transcriptLanguages": {"en": "English"}, "prioritizeHls": false, "autohideHtml5": false, "recordedYoutubeIsAvailable": true, "generalSpeed": 1.0, "autoAdvance": false, "ytTestTimeout": 1500, "streams": "", "autoplay": false, "publishCompletionUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@4ba1c45aed2046708f15138e8094d30e/handler/publish_completion", "showCaptions": "true", "completionEnabled": false, "savedVideoPosition": 0.0, "transcriptTranslationUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@4ba1c45aed2046708f15138e8094d30e/handler/transcript/translation/__lang__", "start": 0.0, "duration": 492.08}'
data-bumper-metadata='null'
data-autoadvance-enabled="False"
data-poster='null'
tabindex="-1"
>
<div class="focus_grabber first"></div>
<div class="tc-wrapper">
<div class="video-wrapper">
<span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span>
<span tabindex="-1" class="btn-play fa fa-youtube-play fa-2x is-hidden" aria-hidden="true" aria-label="Play video"></span>
<div class="video-player-pre"></div>
<div class="video-player">
<div id="4ba1c45aed2046708f15138e8094d30e"></div>
<h4 class="hd hd-4 video-error is-hidden">No playable video sources found.</h4>
<h4 class="hd hd-4 video-hls-error is-hidden">
Your browser does not support this video format. Try using a different browser.
</h4>
</div>
<div class="video-player-post"></div>
<div class="closed-captions"></div>
<div class="video-controls is-hidden">
<div>
<div class="vcr"><div class="vidtime">0:00 / 0:00</div></div>
<div class="secondary-controls"></div>
</div>
</div>
</div>
</div>
<div class="focus_grabber last"></div>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+15.480x+3T2021+type@vertical+block@60c92274fbc34805a97dfa2db0932b38" data-block-type="vertical" data-graded="False" data-course-id="course-v1:MITx+15.480x+3T2021" data-has-score="False" data-request-token="963ec97084bc11ef8f28023e4242adeb" data-init="VerticalStudentView" data-runtime-class="LmsRuntime" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">Exercise: Balanced Two-Arm RCT</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+15.480x+3T2021+type@problem+block@fad148975bc24a909dd4e9d8cffb8235">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-usage-id="block-v1:MITx+15.480x+3T2021+type@problem+block@fad148975bc24a909dd4e9d8cffb8235" data-block-type="problem" data-graded="False" data-course-id="course-v1:MITx+15.480x+3T2021" data-has-score="True" data-request-token="963ec97084bc11ef8f28023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_fad148975bc24a909dd4e9d8cffb8235" class="problems-wrapper" role="group"
aria-labelledby="fad148975bc24a909dd4e9d8cffb8235-problem-title"
data-problem-id="block-v1:MITx+15.480x+3T2021+type@problem+block@fad148975bc24a909dd4e9d8cffb8235" data-url="/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@problem+block@fad148975bc24a909dd4e9d8cffb8235/handler/xmodule_handler"
data-problem-score="0"
data-problem-total-possible="1"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="fad148975bc24a909dd4e9d8cffb8235-problem-title" aria-describedby="block-v1:MITx+15.480x+3T2021+type@problem+block@fad148975bc24a909dd4e9d8cffb8235-problem-progress" tabindex="-1">
Exercise: Balanced Two-Arm RCT
</h3>
<div class="problem-progress" id="block-v1:MITx+15.480x+3T2021+type@problem+block@fad148975bc24a909dd4e9d8cffb8235-problem-progress"></div>
<div class="problem">
<div>
Consider a balanced, two-arm randomized clinical trial (RCT) of a new treatment designed to reduce the risk of myocardial infarction (heart attack). Over the course of the study, 30% fewer patients died in the treatment group relative to the control group, and this difference was statistically significant at the 5% level. We can say with certainty that the treatment is effective.
<p><div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div class="choicegroup capa_inputtype" id="inputtype_fad148975bc24a909dd4e9d8cffb8235_2_1">
<fieldset aria-describedby="status_fad148975bc24a909dd4e9d8cffb8235_2_1">
<div class="field">
<input type="radio" name="input_fad148975bc24a909dd4e9d8cffb8235_2_1" id="input_fad148975bc24a909dd4e9d8cffb8235_2_1_choice_1" class="field-input input-radio" value="choice_1"/><label id="fad148975bc24a909dd4e9d8cffb8235_2_1-choice_1-label" for="input_fad148975bc24a909dd4e9d8cffb8235_2_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_fad148975bc24a909dd4e9d8cffb8235_2_1"> <text>True</text>
</label>
</div>
<div class="field">
<input type="radio" name="input_fad148975bc24a909dd4e9d8cffb8235_2_1" id="input_fad148975bc24a909dd4e9d8cffb8235_2_1_choice_2" class="field-input input-radio" value="choice_2"/><label id="fad148975bc24a909dd4e9d8cffb8235_2_1-choice_2-label" for="input_fad148975bc24a909dd4e9d8cffb8235_2_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_fad148975bc24a909dd4e9d8cffb8235_2_1"> <text>False</text>
</label>
</div>
<span id="answer_fad148975bc24a909dd4e9d8cffb8235_2_1"/>
</fieldset>
<div class="indicator-container">
<span class="status unanswered" id="status_fad148975bc24a909dd4e9d8cffb8235_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
</div>
</div></div></p>
<div class="solution-span">
<span id="solution_fad148975bc24a909dd4e9d8cffb8235_solution_1"/>
</div></div>
<div class="action">
<input type="hidden" name="problem_id" value="Exercise: Balanced Two-Arm RCT" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_fad148975bc24a909dd4e9d8cffb8235" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_fad148975bc24a909dd4e9d8cffb8235">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
<span class="problem-action-button-wrapper">
<button type="button" class="show problem-action-btn btn-default btn-small" aria-describedby="fad148975bc24a909dd4e9d8cffb8235-problem-title"><span class="icon fa fa-info-circle" aria-hidden="true"></span><span class="show-label">Show Answer</span></button>
</span>
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="fad148975bc24a909dd4e9d8cffb8235-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="fad148975bc24a909dd4e9d8cffb8235-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="fad148975bc24a909dd4e9d8cffb8235-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="False">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+15.480x+3T2021+type@vertical+block@cd26308a9a3f46f4975bb54500ed469d" data-block-type="vertical" data-graded="False" data-course-id="course-v1:MITx+15.480x+3T2021" data-has-score="False" data-request-token="963ec97084bc11ef8f28023e4242adeb" data-init="VerticalStudentView" data-runtime-class="LmsRuntime" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">Type I vs. Type II Errors</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+15.480x+3T2021+type@video+block@5f20acbfc2d841b09889ef074f05fe1e">
<div class="xblock xblock-public_view xblock-public_view-video xmodule_display xmodule_VideoBlock" data-usage-id="block-v1:MITx+15.480x+3T2021+type@video+block@5f20acbfc2d841b09889ef074f05fe1e" data-block-type="video" data-graded="False" data-course-id="course-v1:MITx+15.480x+3T2021" data-has-score="False" data-request-token="963ec97084bc11ef8f28023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Video"}
</script>
<h3 class="hd hd-2">Type I vs. Type II Errors</h3>
<div
id="video_5f20acbfc2d841b09889ef074f05fe1e"
class="video closed"
data-metadata='{"end": 0.0, "speed": null, "transcriptAvailableTranslationsUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@5f20acbfc2d841b09889ef074f05fe1e/handler/transcript/available_translations", "saveStateUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@5f20acbfc2d841b09889ef074f05fe1e/handler/xmodule_handler/save_user_state", "poster": null, "saveStateEnabled": false, "completionPercentage": 0.95, "captionDataDir": null, "lmsRootURL": "https://openlearninglibrary.mit.edu", "sources": ["https://d2f1egay8yehza.cloudfront.net/MITx15.482x-V008900_DTH.mp4", "https://d2f1egay8yehza.cloudfront.net/MITx15.482x-V008900/MITx15.482x-V008900.m3u8"], "ytApiUrl": "https://www.youtube.com/iframe_api", "ytMetadataEndpoint": "", "transcriptLanguage": "en", "transcriptLanguages": {"en": "English"}, "prioritizeHls": false, "autohideHtml5": false, "recordedYoutubeIsAvailable": true, "generalSpeed": 1.0, "autoAdvance": false, "ytTestTimeout": 1500, "streams": "", "autoplay": false, "publishCompletionUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@5f20acbfc2d841b09889ef074f05fe1e/handler/publish_completion", "showCaptions": "true", "completionEnabled": false, "savedVideoPosition": 0.0, "transcriptTranslationUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@5f20acbfc2d841b09889ef074f05fe1e/handler/transcript/translation/__lang__", "start": 0.0, "duration": 581.13}'
data-bumper-metadata='null'
data-autoadvance-enabled="False"
data-poster='null'
tabindex="-1"
>
<div class="focus_grabber first"></div>
<div class="tc-wrapper">
<div class="video-wrapper">
<span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span>
<span tabindex="-1" class="btn-play fa fa-youtube-play fa-2x is-hidden" aria-hidden="true" aria-label="Play video"></span>
<div class="video-player-pre"></div>
<div class="video-player">
<div id="5f20acbfc2d841b09889ef074f05fe1e"></div>
<h4 class="hd hd-4 video-error is-hidden">No playable video sources found.</h4>
<h4 class="hd hd-4 video-hls-error is-hidden">
Your browser does not support this video format. Try using a different browser.
</h4>
</div>
<div class="video-player-post"></div>
<div class="closed-captions"></div>
<div class="video-controls is-hidden">
<div>
<div class="vcr"><div class="vidtime">0:00 / 0:00</div></div>
<div class="secondary-controls"></div>
</div>
</div>
</div>
</div>
<div class="focus_grabber last"></div>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+15.480x+3T2021+type@vertical+block@8d4a79d1929d48c692577dce1dc83769" data-block-type="vertical" data-graded="False" data-course-id="course-v1:MITx+15.480x+3T2021" data-has-score="False" data-request-token="963ec97084bc11ef8f28023e4242adeb" data-init="VerticalStudentView" data-runtime-class="LmsRuntime" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">Cost vs. Type I & Type II Errors</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+15.480x+3T2021+type@video+block@c1e3526d325d453da02d68ea463795ec">
<div class="xblock xblock-public_view xblock-public_view-video xmodule_display xmodule_VideoBlock" data-usage-id="block-v1:MITx+15.480x+3T2021+type@video+block@c1e3526d325d453da02d68ea463795ec" data-block-type="video" data-graded="False" data-course-id="course-v1:MITx+15.480x+3T2021" data-has-score="False" data-request-token="963ec97084bc11ef8f28023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Video"}
</script>
<h3 class="hd hd-2">Cost vs. Type I & Type II Errors</h3>
<div
id="video_c1e3526d325d453da02d68ea463795ec"
class="video closed"
data-metadata='{"end": 0.0, "speed": null, "transcriptAvailableTranslationsUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@c1e3526d325d453da02d68ea463795ec/handler/transcript/available_translations", "saveStateUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@c1e3526d325d453da02d68ea463795ec/handler/xmodule_handler/save_user_state", "poster": "https://mitx-edx-video-meta-storage.s3.amazonaws.com/media/video-images/7795720001e045f5b078d497898a9b11.png?AWSAccessKeyId=ASIA4QDFFSURQHZB55UW&Expires=1728313400&x-amz-security-token=IQoJb3JpZ2luX2VjENf%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCXVzLWVhc3QtMSJGMEQCID8qjkOEWGwNqLfv6XpQOm0MquEDWYUhAFFlO0JddfjIAiBmUz5fbu9d%2FYCT54GuuYtg%2FQ%2B9pDSaGOCyTn%2BKN05wNiq6BQgwEAMaDDg1OTIwNTYzNzQxMSIMkHCzU6Jwe5nGlsRCKpcFxIkrlqItAI2vSdfRrOvz7Os8xkTpebh40GMtwer1BjgYqh982%2F4yW7SyrenLxrWX3GEkj6Vv0f0sfmeWLj52WuMBRP4ZpTeqTrGw%2B%2Bqj5EEmkD8mb3i8sxERch6MAnvJs9fQkAReXnT3wG4GXYuuzYi1a7qEzkur%2FMXKtwdFHg%2B%2F4bTcnqdE9u8hQIG0dt6MCbInqqrWo%2FsU0teKS22SCt27r%2FJ3yO2zx4HunqThqv0RjxG3jKeKi4ucGNFZbfc20DToqZuOCuC9E0Qq3AhrE6jKLepvprP0FfR4J8JrcbQJelFGuazYXLSC8FWfVXOn722TD5S105OSY%2FUmlTuhvrjgiGFp1zgPy4qCh2Rb5W38oRAClMNtFUwleaHekUAy3Khg5ldYInoM74gnh189aR2IQUxJeiGc5SYzxbUrllj%2B61iItPwQzhatSn%2Fjw6DtA9aIuLtL3n2W1hC0V7OeHcKcC0jmeiRerA%2BeuE4Q7hPQYJJqXA4KGMJUFAexROCqSVaZbFqTtwIzv%2BnfsmWqqVK9TCTmbqhlFD6%2FEh1VdfqdaQDVBCD5TyDMX4Y8uhExQMf2RtWjlquj4fSCFqFrdHbJDBq9UtVbnSZjifsHC%2FeoYCM9BqHXtdAmGgeOkNzGobBD%2FzNMNINtEL%2BaPC68OfLCM1DvE%2BfG%2B2OgruUWSgMJKdkRSreLzpBVj5HIUwniY6ptvE%2FjEZXF0w7mqOpBY4yhKOxxXR%2Fx4rYwoIPROT%2FnblmeGNQxZIcvw2Qgi4fKb3xdZDkAi9sjml1pQ8BJrlXEFmj4uGw0tCH%2FMRhfUgl2mt4%2BfjNODZX5ENw10WLpnEO84%2FnzfHsY33iVJa8elEmGgEXqPj3p6AVOmoP3oshNIqJlJIg2MIjmj7gGOrIByj542rK1EBCDcMLZ4oL3SlBLUBRo6N2jAX%2FLpz3BC7OWbMPxfCMCZksnOxPvTb2ab0IZaWFvHVw8GP0uN31U%2BiCfo8lQL6UL6mPoW3KcSYPQwZky5mYsc%2B1a0OzbCQ8GzTos0oBl0HDP5YapcremW11QbPIB%2FWE932QhA1UTLoApwT1FkD0TijiTy%2BamZvyP1Q4QgoeBGx1pTrJCO2KnYutHfWsjfoYkvtKZRxbIr4pomA%3D%3D&Signature=Ru0yi29K5fswY5rKyxPl51i6cY0%3D", "saveStateEnabled": false, "completionPercentage": 0.95, "captionDataDir": null, "lmsRootURL": "https://openlearninglibrary.mit.edu", "sources": ["https://d2f1egay8yehza.cloudfront.net/MITx15.482x-V008300_DTH.mp4", "https://d2f1egay8yehza.cloudfront.net/MITx15.482x-V008300/MITx15.482x-V008300.m3u8"], "ytApiUrl": "https://www.youtube.com/iframe_api", "ytMetadataEndpoint": "", "transcriptLanguage": "en", "transcriptLanguages": {"en": "English"}, "prioritizeHls": false, "autohideHtml5": false, "recordedYoutubeIsAvailable": true, "generalSpeed": 1.0, "autoAdvance": false, "ytTestTimeout": 1500, "streams": "", "autoplay": false, "publishCompletionUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@c1e3526d325d453da02d68ea463795ec/handler/publish_completion", "showCaptions": "true", "completionEnabled": false, "savedVideoPosition": 0.0, "transcriptTranslationUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@c1e3526d325d453da02d68ea463795ec/handler/transcript/translation/__lang__", "start": 0.0, "duration": 343.5}'
data-bumper-metadata='null'
data-autoadvance-enabled="False"
data-poster='null'
tabindex="-1"
>
<div class="focus_grabber first"></div>
<div class="tc-wrapper">
<div class="video-wrapper">
<span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span>
<span tabindex="-1" class="btn-play fa fa-youtube-play fa-2x is-hidden" aria-hidden="true" aria-label="Play video"></span>
<div class="video-player-pre"></div>
<div class="video-player">
<div id="c1e3526d325d453da02d68ea463795ec"></div>
<h4 class="hd hd-4 video-error is-hidden">No playable video sources found.</h4>
<h4 class="hd hd-4 video-hls-error is-hidden">
Your browser does not support this video format. Try using a different browser.
</h4>
</div>
<div class="video-player-post"></div>
<div class="closed-captions"></div>
<div class="video-controls is-hidden">
<div>
<div class="vcr"><div class="vidtime">0:00 / 0:00</div></div>
<div class="secondary-controls"></div>
</div>
</div>
</div>
</div>
<div class="focus_grabber last"></div>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+15.480x+3T2021+type@vertical+block@15baf8f09d08433ea91c0e1bdac093dc" data-block-type="vertical" data-graded="False" data-course-id="course-v1:MITx+15.480x+3T2021" data-has-score="False" data-request-token="963ec97084bc11ef8f28023e4242adeb" data-init="VerticalStudentView" data-runtime-class="LmsRuntime" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">Exercise: Cost vs. Type I & Type II Errors</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+15.480x+3T2021+type@problem+block@074371f3a2b94549a66ef21500472ee6">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-usage-id="block-v1:MITx+15.480x+3T2021+type@problem+block@074371f3a2b94549a66ef21500472ee6" data-block-type="problem" data-graded="False" data-course-id="course-v1:MITx+15.480x+3T2021" data-has-score="True" data-request-token="963ec97084bc11ef8f28023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_074371f3a2b94549a66ef21500472ee6" class="problems-wrapper" role="group"
aria-labelledby="074371f3a2b94549a66ef21500472ee6-problem-title"
data-problem-id="block-v1:MITx+15.480x+3T2021+type@problem+block@074371f3a2b94549a66ef21500472ee6" data-url="/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@problem+block@074371f3a2b94549a66ef21500472ee6/handler/xmodule_handler"
data-problem-score="0"
data-problem-total-possible="1"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="074371f3a2b94549a66ef21500472ee6-problem-title" aria-describedby="block-v1:MITx+15.480x+3T2021+type@problem+block@074371f3a2b94549a66ef21500472ee6-problem-progress" tabindex="-1">
Exercise: Cost vs. Type I &amp; Type II Errors
</h3>
<div class="problem-progress" id="block-v1:MITx+15.480x+3T2021+type@problem+block@074371f3a2b94549a66ef21500472ee6-problem-progress"></div>
<div class="problem">
<div>
Consider a small randomized clinical trial of a new treatment designed to reduce the risk of myocardial infarction (heart attack). Over the course of the study, 20% fewer patients died in the treatment group relative to the control group, but this difference was not statistically significant. If we are not constrained by costs, then we should test the new treatment in a larger clinical trial.
<p><div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div class="choicegroup capa_inputtype" id="inputtype_074371f3a2b94549a66ef21500472ee6_2_1">
<fieldset aria-describedby="status_074371f3a2b94549a66ef21500472ee6_2_1">
<div class="field">
<input type="radio" name="input_074371f3a2b94549a66ef21500472ee6_2_1" id="input_074371f3a2b94549a66ef21500472ee6_2_1_choice_1" class="field-input input-radio" value="choice_1"/><label id="074371f3a2b94549a66ef21500472ee6_2_1-choice_1-label" for="input_074371f3a2b94549a66ef21500472ee6_2_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_074371f3a2b94549a66ef21500472ee6_2_1"> <text>True</text>
</label>
</div>
<div class="field">
<input type="radio" name="input_074371f3a2b94549a66ef21500472ee6_2_1" id="input_074371f3a2b94549a66ef21500472ee6_2_1_choice_2" class="field-input input-radio" value="choice_2"/><label id="074371f3a2b94549a66ef21500472ee6_2_1-choice_2-label" for="input_074371f3a2b94549a66ef21500472ee6_2_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_074371f3a2b94549a66ef21500472ee6_2_1"> <text>False</text>
</label>
</div>
<span id="answer_074371f3a2b94549a66ef21500472ee6_2_1"/>
</fieldset>
<div class="indicator-container">
<span class="status unanswered" id="status_074371f3a2b94549a66ef21500472ee6_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
</div>
</div></div></p>
<div class="solution-span">
<span id="solution_074371f3a2b94549a66ef21500472ee6_solution_1"/>
</div></div>
<div class="action">
<input type="hidden" name="problem_id" value="Exercise: Cost vs. Type I &amp; Type II Errors" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_074371f3a2b94549a66ef21500472ee6" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_074371f3a2b94549a66ef21500472ee6">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
<span class="problem-action-button-wrapper">
<button type="button" class="show problem-action-btn btn-default btn-small" aria-describedby="074371f3a2b94549a66ef21500472ee6-problem-title"><span class="icon fa fa-info-circle" aria-hidden="true"></span><span class="show-label">Show Answer</span></button>
</span>
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="074371f3a2b94549a66ef21500472ee6-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="074371f3a2b94549a66ef21500472ee6-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="074371f3a2b94549a66ef21500472ee6-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="False">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+15.480x+3T2021+type@vertical+block@11ab2cb7cd384f3082bb28c5e2246937" data-block-type="vertical" data-graded="False" data-course-id="course-v1:MITx+15.480x+3T2021" data-has-score="False" data-request-token="963ec97084bc11ef8f28023e4242adeb" data-init="VerticalStudentView" data-runtime-class="LmsRuntime" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">Changing the Threshold c</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+15.480x+3T2021+type@video+block@1f4f83b2c4414dcaa8751b35c05f1940">
<div class="xblock xblock-public_view xblock-public_view-video xmodule_display xmodule_VideoBlock" data-usage-id="block-v1:MITx+15.480x+3T2021+type@video+block@1f4f83b2c4414dcaa8751b35c05f1940" data-block-type="video" data-graded="False" data-course-id="course-v1:MITx+15.480x+3T2021" data-has-score="False" data-request-token="963ec97084bc11ef8f28023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Video"}
</script>
<h3 class="hd hd-2">Changing the Threshold c</h3>
<div
id="video_1f4f83b2c4414dcaa8751b35c05f1940"
class="video closed"
data-metadata='{"end": 0.0, "speed": null, "transcriptAvailableTranslationsUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@1f4f83b2c4414dcaa8751b35c05f1940/handler/transcript/available_translations", "saveStateUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@1f4f83b2c4414dcaa8751b35c05f1940/handler/xmodule_handler/save_user_state", "poster": "https://mitx-edx-video-meta-storage.s3.amazonaws.com/media/video-images/ca62b895558d4a3db9ba71d64905dded.png?AWSAccessKeyId=ASIA4QDFFSURQHZB55UW&Expires=1728313400&x-amz-security-token=IQoJb3JpZ2luX2VjENf%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCXVzLWVhc3QtMSJGMEQCID8qjkOEWGwNqLfv6XpQOm0MquEDWYUhAFFlO0JddfjIAiBmUz5fbu9d%2FYCT54GuuYtg%2FQ%2B9pDSaGOCyTn%2BKN05wNiq6BQgwEAMaDDg1OTIwNTYzNzQxMSIMkHCzU6Jwe5nGlsRCKpcFxIkrlqItAI2vSdfRrOvz7Os8xkTpebh40GMtwer1BjgYqh982%2F4yW7SyrenLxrWX3GEkj6Vv0f0sfmeWLj52WuMBRP4ZpTeqTrGw%2B%2Bqj5EEmkD8mb3i8sxERch6MAnvJs9fQkAReXnT3wG4GXYuuzYi1a7qEzkur%2FMXKtwdFHg%2B%2F4bTcnqdE9u8hQIG0dt6MCbInqqrWo%2FsU0teKS22SCt27r%2FJ3yO2zx4HunqThqv0RjxG3jKeKi4ucGNFZbfc20DToqZuOCuC9E0Qq3AhrE6jKLepvprP0FfR4J8JrcbQJelFGuazYXLSC8FWfVXOn722TD5S105OSY%2FUmlTuhvrjgiGFp1zgPy4qCh2Rb5W38oRAClMNtFUwleaHekUAy3Khg5ldYInoM74gnh189aR2IQUxJeiGc5SYzxbUrllj%2B61iItPwQzhatSn%2Fjw6DtA9aIuLtL3n2W1hC0V7OeHcKcC0jmeiRerA%2BeuE4Q7hPQYJJqXA4KGMJUFAexROCqSVaZbFqTtwIzv%2BnfsmWqqVK9TCTmbqhlFD6%2FEh1VdfqdaQDVBCD5TyDMX4Y8uhExQMf2RtWjlquj4fSCFqFrdHbJDBq9UtVbnSZjifsHC%2FeoYCM9BqHXtdAmGgeOkNzGobBD%2FzNMNINtEL%2BaPC68OfLCM1DvE%2BfG%2B2OgruUWSgMJKdkRSreLzpBVj5HIUwniY6ptvE%2FjEZXF0w7mqOpBY4yhKOxxXR%2Fx4rYwoIPROT%2FnblmeGNQxZIcvw2Qgi4fKb3xdZDkAi9sjml1pQ8BJrlXEFmj4uGw0tCH%2FMRhfUgl2mt4%2BfjNODZX5ENw10WLpnEO84%2FnzfHsY33iVJa8elEmGgEXqPj3p6AVOmoP3oshNIqJlJIg2MIjmj7gGOrIByj542rK1EBCDcMLZ4oL3SlBLUBRo6N2jAX%2FLpz3BC7OWbMPxfCMCZksnOxPvTb2ab0IZaWFvHVw8GP0uN31U%2BiCfo8lQL6UL6mPoW3KcSYPQwZky5mYsc%2B1a0OzbCQ8GzTos0oBl0HDP5YapcremW11QbPIB%2FWE932QhA1UTLoApwT1FkD0TijiTy%2BamZvyP1Q4QgoeBGx1pTrJCO2KnYutHfWsjfoYkvtKZRxbIr4pomA%3D%3D&Signature=iU%2FseNbOIDeRV8gWr1dzP%2FzEFXw%3D", "saveStateEnabled": false, "completionPercentage": 0.95, "captionDataDir": null, "lmsRootURL": "https://openlearninglibrary.mit.edu", "sources": ["https://d2f1egay8yehza.cloudfront.net/MITx15.482x-V008400_DTH.mp4", "https://d2f1egay8yehza.cloudfront.net/MITx15.482x-V008400/MITx15.482x-V008400.m3u8"], "ytApiUrl": "https://www.youtube.com/iframe_api", "ytMetadataEndpoint": "", "transcriptLanguage": "en", "transcriptLanguages": {"en": "English"}, "prioritizeHls": false, "autohideHtml5": false, "recordedYoutubeIsAvailable": true, "generalSpeed": 1.0, "autoAdvance": false, "ytTestTimeout": 1500, "streams": "", "autoplay": false, "publishCompletionUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@1f4f83b2c4414dcaa8751b35c05f1940/handler/publish_completion", "showCaptions": "true", "completionEnabled": false, "savedVideoPosition": 0.0, "transcriptTranslationUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@1f4f83b2c4414dcaa8751b35c05f1940/handler/transcript/translation/__lang__", "start": 0.0, "duration": 189.25}'
data-bumper-metadata='null'
data-autoadvance-enabled="False"
data-poster='null'
tabindex="-1"
>
<div class="focus_grabber first"></div>
<div class="tc-wrapper">
<div class="video-wrapper">
<span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span>
<span tabindex="-1" class="btn-play fa fa-youtube-play fa-2x is-hidden" aria-hidden="true" aria-label="Play video"></span>
<div class="video-player-pre"></div>
<div class="video-player">
<div id="1f4f83b2c4414dcaa8751b35c05f1940"></div>
<h4 class="hd hd-4 video-error is-hidden">No playable video sources found.</h4>
<h4 class="hd hd-4 video-hls-error is-hidden">
Your browser does not support this video format. Try using a different browser.
</h4>
</div>
<div class="video-player-post"></div>
<div class="closed-captions"></div>
<div class="video-controls is-hidden">
<div>
<div class="vcr"><div class="vidtime">0:00 / 0:00</div></div>
<div class="secondary-controls"></div>
</div>
</div>
</div>
</div>
<div class="focus_grabber last"></div>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+15.480x+3T2021+type@vertical+block@94a65faa1a0249ca95bfa43de3f07b9e" data-block-type="vertical" data-graded="False" data-course-id="course-v1:MITx+15.480x+3T2021" data-has-score="False" data-request-token="963ec97084bc11ef8f28023e4242adeb" data-init="VerticalStudentView" data-runtime-class="LmsRuntime" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">Formal Statistical Analysis</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+15.480x+3T2021+type@video+block@491351ca66474a649d99411ab5f0501e">
<div class="xblock xblock-public_view xblock-public_view-video xmodule_display xmodule_VideoBlock" data-usage-id="block-v1:MITx+15.480x+3T2021+type@video+block@491351ca66474a649d99411ab5f0501e" data-block-type="video" data-graded="False" data-course-id="course-v1:MITx+15.480x+3T2021" data-has-score="False" data-request-token="963ec97084bc11ef8f28023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Video"}
</script>
<h3 class="hd hd-2">Formal Statistical Analysis</h3>
<div
id="video_491351ca66474a649d99411ab5f0501e"
class="video closed"
data-metadata='{"end": 0.0, "speed": null, "transcriptAvailableTranslationsUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@491351ca66474a649d99411ab5f0501e/handler/transcript/available_translations", "saveStateUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@491351ca66474a649d99411ab5f0501e/handler/xmodule_handler/save_user_state", "poster": "https://mitx-edx-video-meta-storage.s3.amazonaws.com/media/video-images/2c150c0a7b0b45c2a825f1aa0275c5f6.png?AWSAccessKeyId=ASIA4QDFFSURQHZB55UW&Expires=1728313400&x-amz-security-token=IQoJb3JpZ2luX2VjENf%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCXVzLWVhc3QtMSJGMEQCID8qjkOEWGwNqLfv6XpQOm0MquEDWYUhAFFlO0JddfjIAiBmUz5fbu9d%2FYCT54GuuYtg%2FQ%2B9pDSaGOCyTn%2BKN05wNiq6BQgwEAMaDDg1OTIwNTYzNzQxMSIMkHCzU6Jwe5nGlsRCKpcFxIkrlqItAI2vSdfRrOvz7Os8xkTpebh40GMtwer1BjgYqh982%2F4yW7SyrenLxrWX3GEkj6Vv0f0sfmeWLj52WuMBRP4ZpTeqTrGw%2B%2Bqj5EEmkD8mb3i8sxERch6MAnvJs9fQkAReXnT3wG4GXYuuzYi1a7qEzkur%2FMXKtwdFHg%2B%2F4bTcnqdE9u8hQIG0dt6MCbInqqrWo%2FsU0teKS22SCt27r%2FJ3yO2zx4HunqThqv0RjxG3jKeKi4ucGNFZbfc20DToqZuOCuC9E0Qq3AhrE6jKLepvprP0FfR4J8JrcbQJelFGuazYXLSC8FWfVXOn722TD5S105OSY%2FUmlTuhvrjgiGFp1zgPy4qCh2Rb5W38oRAClMNtFUwleaHekUAy3Khg5ldYInoM74gnh189aR2IQUxJeiGc5SYzxbUrllj%2B61iItPwQzhatSn%2Fjw6DtA9aIuLtL3n2W1hC0V7OeHcKcC0jmeiRerA%2BeuE4Q7hPQYJJqXA4KGMJUFAexROCqSVaZbFqTtwIzv%2BnfsmWqqVK9TCTmbqhlFD6%2FEh1VdfqdaQDVBCD5TyDMX4Y8uhExQMf2RtWjlquj4fSCFqFrdHbJDBq9UtVbnSZjifsHC%2FeoYCM9BqHXtdAmGgeOkNzGobBD%2FzNMNINtEL%2BaPC68OfLCM1DvE%2BfG%2B2OgruUWSgMJKdkRSreLzpBVj5HIUwniY6ptvE%2FjEZXF0w7mqOpBY4yhKOxxXR%2Fx4rYwoIPROT%2FnblmeGNQxZIcvw2Qgi4fKb3xdZDkAi9sjml1pQ8BJrlXEFmj4uGw0tCH%2FMRhfUgl2mt4%2BfjNODZX5ENw10WLpnEO84%2FnzfHsY33iVJa8elEmGgEXqPj3p6AVOmoP3oshNIqJlJIg2MIjmj7gGOrIByj542rK1EBCDcMLZ4oL3SlBLUBRo6N2jAX%2FLpz3BC7OWbMPxfCMCZksnOxPvTb2ab0IZaWFvHVw8GP0uN31U%2BiCfo8lQL6UL6mPoW3KcSYPQwZky5mYsc%2B1a0OzbCQ8GzTos0oBl0HDP5YapcremW11QbPIB%2FWE932QhA1UTLoApwT1FkD0TijiTy%2BamZvyP1Q4QgoeBGx1pTrJCO2KnYutHfWsjfoYkvtKZRxbIr4pomA%3D%3D&Signature=p9HyfzuBw5m2vLENiER%2BgJ7YQLc%3D", "saveStateEnabled": false, "completionPercentage": 0.95, "captionDataDir": null, "lmsRootURL": "https://openlearninglibrary.mit.edu", "sources": ["https://d2f1egay8yehza.cloudfront.net/MITx15.482x-V008200_DTH.mp4", "https://d2f1egay8yehza.cloudfront.net/MITx15.482x-V008200/MITx15.482x-V008200.m3u8"], "ytApiUrl": "https://www.youtube.com/iframe_api", "ytMetadataEndpoint": "", "transcriptLanguage": "en", "transcriptLanguages": {"en": "English"}, "prioritizeHls": false, "autohideHtml5": false, "recordedYoutubeIsAvailable": true, "generalSpeed": 1.0, "autoAdvance": false, "ytTestTimeout": 1500, "streams": "", "autoplay": false, "publishCompletionUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@491351ca66474a649d99411ab5f0501e/handler/publish_completion", "showCaptions": "true", "completionEnabled": false, "savedVideoPosition": 0.0, "transcriptTranslationUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@491351ca66474a649d99411ab5f0501e/handler/transcript/translation/__lang__", "start": 0.0, "duration": 250.77}'
data-bumper-metadata='null'
data-autoadvance-enabled="False"
data-poster='null'
tabindex="-1"
>
<div class="focus_grabber first"></div>
<div class="tc-wrapper">
<div class="video-wrapper">
<span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span>
<span tabindex="-1" class="btn-play fa fa-youtube-play fa-2x is-hidden" aria-hidden="true" aria-label="Play video"></span>
<div class="video-player-pre"></div>
<div class="video-player">
<div id="491351ca66474a649d99411ab5f0501e"></div>
<h4 class="hd hd-4 video-error is-hidden">No playable video sources found.</h4>
<h4 class="hd hd-4 video-hls-error is-hidden">
Your browser does not support this video format. Try using a different browser.
</h4>
</div>
<div class="video-player-post"></div>
<div class="closed-captions"></div>
<div class="video-controls is-hidden">
<div>
<div class="vcr"><div class="vidtime">0:00 / 0:00</div></div>
<div class="secondary-controls"></div>
</div>
</div>
</div>
</div>
<div class="focus_grabber last"></div>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+15.480x+3T2021+type@vertical+block@7cce6be6cfcf47e2b12053b1a4705fa5" data-block-type="vertical" data-graded="False" data-course-id="course-v1:MITx+15.480x+3T2021" data-has-score="False" data-request-token="963ec97084bc11ef8f28023e4242adeb" data-init="VerticalStudentView" data-runtime-class="LmsRuntime" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">Interactive: RCT Statistics</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+15.480x+3T2021+type@html+block@064bb1555b214992813551a48b36b2e0">
<div class="xblock xblock-public_view xblock-public_view-html xmodule_display xmodule_HtmlBlock" data-usage-id="block-v1:MITx+15.480x+3T2021+type@html+block@064bb1555b214992813551a48b36b2e0" data-block-type="html" data-graded="False" data-course-id="course-v1:MITx+15.480x+3T2021" data-has-score="False" data-request-token="963ec97084bc11ef8f28023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "HTMLModule"}
</script>
<p style="text-align: left;">The graph below calculates the statistical power of a balanced, two-arm randomized clinical trial. What happens when the number of patients in the trial is increased? Notice the trade-off that exists between statistical power (type 2 error) and the statistical significance level (type 1 error).</p>
<p style="text-align: center;"><iframe title="Perpetuity" src="https://courses.edx.org/asset-v1:MITx+15.482x+1T2019+type@asset+block@Unit6_RCT.html" width="640" height="460" marginwidth="0" marginheight="0" frameborder="0" scrolling="no">
Your browser does not support IFrames.
</iframe></p>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+15.480x+3T2021+type@vertical+block@5e912c70a1b1478e8d9cfae613274f7c" data-block-type="vertical" data-graded="False" data-course-id="course-v1:MITx+15.480x+3T2021" data-has-score="False" data-request-token="963ec97084bc11ef8f28023e4242adeb" data-init="VerticalStudentView" data-runtime-class="LmsRuntime" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">Hypothesis Testing Review</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+15.480x+3T2021+type@video+block@1462131ab3e14036a2d23b551a9ac379">
<div class="xblock xblock-public_view xblock-public_view-video xmodule_display xmodule_VideoBlock" data-usage-id="block-v1:MITx+15.480x+3T2021+type@video+block@1462131ab3e14036a2d23b551a9ac379" data-block-type="video" data-graded="False" data-course-id="course-v1:MITx+15.480x+3T2021" data-has-score="False" data-request-token="963ec97084bc11ef8f28023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Video"}
</script>
<h3 class="hd hd-2">Hypothesis Testing Review</h3>
<div
id="video_1462131ab3e14036a2d23b551a9ac379"
class="video closed"
data-metadata='{"end": 0.0, "speed": null, "transcriptAvailableTranslationsUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@1462131ab3e14036a2d23b551a9ac379/handler/transcript/available_translations", "saveStateUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@1462131ab3e14036a2d23b551a9ac379/handler/xmodule_handler/save_user_state", "poster": null, "saveStateEnabled": false, "completionPercentage": 0.95, "captionDataDir": null, "lmsRootURL": "https://openlearninglibrary.mit.edu", "sources": ["https://d2f1egay8yehza.cloudfront.net/MITx15.482x-V009800/MITx15.482x-V009800.m3u8", "https://d2f1egay8yehza.cloudfront.net/MITx15.482x-V009800_DTH.mp4"], "ytApiUrl": "https://www.youtube.com/iframe_api", "ytMetadataEndpoint": "", "transcriptLanguage": "en", "transcriptLanguages": {"en": "English"}, "prioritizeHls": false, "autohideHtml5": false, "recordedYoutubeIsAvailable": true, "generalSpeed": 1.0, "autoAdvance": false, "ytTestTimeout": 1500, "streams": "", "autoplay": false, "publishCompletionUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@1462131ab3e14036a2d23b551a9ac379/handler/publish_completion", "showCaptions": "true", "completionEnabled": false, "savedVideoPosition": 0.0, "transcriptTranslationUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@1462131ab3e14036a2d23b551a9ac379/handler/transcript/translation/__lang__", "start": 0.0, "duration": 396.79}'
data-bumper-metadata='null'
data-autoadvance-enabled="False"
data-poster='null'
tabindex="-1"
>
<div class="focus_grabber first"></div>
<div class="tc-wrapper">
<div class="video-wrapper">
<span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span>
<span tabindex="-1" class="btn-play fa fa-youtube-play fa-2x is-hidden" aria-hidden="true" aria-label="Play video"></span>
<div class="video-player-pre"></div>
<div class="video-player">
<div id="1462131ab3e14036a2d23b551a9ac379"></div>
<h4 class="hd hd-4 video-error is-hidden">No playable video sources found.</h4>
<h4 class="hd hd-4 video-hls-error is-hidden">
Your browser does not support this video format. Try using a different browser.
</h4>
</div>
<div class="video-player-post"></div>
<div class="closed-captions"></div>
<div class="video-controls is-hidden">
<div>
<div class="vcr"><div class="vidtime">0:00 / 0:00</div></div>
<div class="secondary-controls"></div>
</div>
</div>
</div>
</div>
<div class="focus_grabber last"></div>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+15.480x+3T2021+type@vertical+block@9d89546478674366986fef167c7d5aef" data-block-type="vertical" data-graded="False" data-course-id="course-v1:MITx+15.480x+3T2021" data-has-score="False" data-request-token="963ec97084bc11ef8f28023e4242adeb" data-init="VerticalStudentView" data-runtime-class="LmsRuntime" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">Alternative Hypothesis vs. Power</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+15.480x+3T2021+type@video+block@f4e046df0eb84e118213af3c02d187cb">
<div class="xblock xblock-public_view xblock-public_view-video xmodule_display xmodule_VideoBlock" data-usage-id="block-v1:MITx+15.480x+3T2021+type@video+block@f4e046df0eb84e118213af3c02d187cb" data-block-type="video" data-graded="False" data-course-id="course-v1:MITx+15.480x+3T2021" data-has-score="False" data-request-token="963ec97084bc11ef8f28023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Video"}
</script>
<h3 class="hd hd-2">Alternative Hypothesis vs. Power</h3>
<div
id="video_f4e046df0eb84e118213af3c02d187cb"
class="video closed"
data-metadata='{"end": 0.0, "speed": null, "transcriptAvailableTranslationsUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@f4e046df0eb84e118213af3c02d187cb/handler/transcript/available_translations", "saveStateUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@f4e046df0eb84e118213af3c02d187cb/handler/xmodule_handler/save_user_state", "poster": null, "saveStateEnabled": false, "completionPercentage": 0.95, "captionDataDir": null, "lmsRootURL": "https://openlearninglibrary.mit.edu", "sources": ["https://d2f1egay8yehza.cloudfront.net/MITx15.482x-V009500/MITx15.482x-V009500.m3u8", "https://d2f1egay8yehza.cloudfront.net/MITx15.482x-V009500_DTH.mp4"], "ytApiUrl": "https://www.youtube.com/iframe_api", "ytMetadataEndpoint": "", "transcriptLanguage": "en", "transcriptLanguages": {"en": "English"}, "prioritizeHls": false, "autohideHtml5": false, "recordedYoutubeIsAvailable": true, "generalSpeed": 1.0, "autoAdvance": false, "ytTestTimeout": 1500, "streams": "", "autoplay": false, "publishCompletionUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@f4e046df0eb84e118213af3c02d187cb/handler/publish_completion", "showCaptions": "true", "completionEnabled": false, "savedVideoPosition": 0.0, "transcriptTranslationUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@f4e046df0eb84e118213af3c02d187cb/handler/transcript/translation/__lang__", "start": 0.0, "duration": 307.97}'
data-bumper-metadata='null'
data-autoadvance-enabled="False"
data-poster='null'
tabindex="-1"
>
<div class="focus_grabber first"></div>
<div class="tc-wrapper">
<div class="video-wrapper">
<span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span>
<span tabindex="-1" class="btn-play fa fa-youtube-play fa-2x is-hidden" aria-hidden="true" aria-label="Play video"></span>
<div class="video-player-pre"></div>
<div class="video-player">
<div id="f4e046df0eb84e118213af3c02d187cb"></div>
<h4 class="hd hd-4 video-error is-hidden">No playable video sources found.</h4>
<h4 class="hd hd-4 video-hls-error is-hidden">
Your browser does not support this video format. Try using a different browser.
</h4>
</div>
<div class="video-player-post"></div>
<div class="closed-captions"></div>
<div class="video-controls is-hidden">
<div>
<div class="vcr"><div class="vidtime">0:00 / 0:00</div></div>
<div class="secondary-controls"></div>
</div>
</div>
</div>
</div>
<div class="focus_grabber last"></div>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+15.480x+3T2021+type@vertical+block@b07c757056c2456a8564c169c19f05d4" data-block-type="vertical" data-graded="False" data-course-id="course-v1:MITx+15.480x+3T2021" data-has-score="False" data-request-token="963ec97084bc11ef8f28023e4242adeb" data-init="VerticalStudentView" data-runtime-class="LmsRuntime" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">Example: Spark’s Luxturna</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+15.480x+3T2021+type@video+block@f9f1f12e904f4381bea9ea6a753de5be">
<div class="xblock xblock-public_view xblock-public_view-video xmodule_display xmodule_VideoBlock" data-usage-id="block-v1:MITx+15.480x+3T2021+type@video+block@f9f1f12e904f4381bea9ea6a753de5be" data-block-type="video" data-graded="False" data-course-id="course-v1:MITx+15.480x+3T2021" data-has-score="False" data-request-token="963ec97084bc11ef8f28023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Video"}
</script>
<h3 class="hd hd-2">Example: Spark’s Luxturna</h3>
<div
id="video_f9f1f12e904f4381bea9ea6a753de5be"
class="video closed"
data-metadata='{"end": 0.0, "speed": null, "transcriptAvailableTranslationsUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@f9f1f12e904f4381bea9ea6a753de5be/handler/transcript/available_translations", "saveStateUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@f9f1f12e904f4381bea9ea6a753de5be/handler/xmodule_handler/save_user_state", "poster": "https://mitx-edx-video-meta-storage.s3.amazonaws.com/media/video-images/0d2f5f7e23704fba8052d0f37a78eb86.png?AWSAccessKeyId=ASIA4QDFFSURQHZB55UW&Expires=1728313401&x-amz-security-token=IQoJb3JpZ2luX2VjENf%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCXVzLWVhc3QtMSJGMEQCID8qjkOEWGwNqLfv6XpQOm0MquEDWYUhAFFlO0JddfjIAiBmUz5fbu9d%2FYCT54GuuYtg%2FQ%2B9pDSaGOCyTn%2BKN05wNiq6BQgwEAMaDDg1OTIwNTYzNzQxMSIMkHCzU6Jwe5nGlsRCKpcFxIkrlqItAI2vSdfRrOvz7Os8xkTpebh40GMtwer1BjgYqh982%2F4yW7SyrenLxrWX3GEkj6Vv0f0sfmeWLj52WuMBRP4ZpTeqTrGw%2B%2Bqj5EEmkD8mb3i8sxERch6MAnvJs9fQkAReXnT3wG4GXYuuzYi1a7qEzkur%2FMXKtwdFHg%2B%2F4bTcnqdE9u8hQIG0dt6MCbInqqrWo%2FsU0teKS22SCt27r%2FJ3yO2zx4HunqThqv0RjxG3jKeKi4ucGNFZbfc20DToqZuOCuC9E0Qq3AhrE6jKLepvprP0FfR4J8JrcbQJelFGuazYXLSC8FWfVXOn722TD5S105OSY%2FUmlTuhvrjgiGFp1zgPy4qCh2Rb5W38oRAClMNtFUwleaHekUAy3Khg5ldYInoM74gnh189aR2IQUxJeiGc5SYzxbUrllj%2B61iItPwQzhatSn%2Fjw6DtA9aIuLtL3n2W1hC0V7OeHcKcC0jmeiRerA%2BeuE4Q7hPQYJJqXA4KGMJUFAexROCqSVaZbFqTtwIzv%2BnfsmWqqVK9TCTmbqhlFD6%2FEh1VdfqdaQDVBCD5TyDMX4Y8uhExQMf2RtWjlquj4fSCFqFrdHbJDBq9UtVbnSZjifsHC%2FeoYCM9BqHXtdAmGgeOkNzGobBD%2FzNMNINtEL%2BaPC68OfLCM1DvE%2BfG%2B2OgruUWSgMJKdkRSreLzpBVj5HIUwniY6ptvE%2FjEZXF0w7mqOpBY4yhKOxxXR%2Fx4rYwoIPROT%2FnblmeGNQxZIcvw2Qgi4fKb3xdZDkAi9sjml1pQ8BJrlXEFmj4uGw0tCH%2FMRhfUgl2mt4%2BfjNODZX5ENw10WLpnEO84%2FnzfHsY33iVJa8elEmGgEXqPj3p6AVOmoP3oshNIqJlJIg2MIjmj7gGOrIByj542rK1EBCDcMLZ4oL3SlBLUBRo6N2jAX%2FLpz3BC7OWbMPxfCMCZksnOxPvTb2ab0IZaWFvHVw8GP0uN31U%2BiCfo8lQL6UL6mPoW3KcSYPQwZky5mYsc%2B1a0OzbCQ8GzTos0oBl0HDP5YapcremW11QbPIB%2FWE932QhA1UTLoApwT1FkD0TijiTy%2BamZvyP1Q4QgoeBGx1pTrJCO2KnYutHfWsjfoYkvtKZRxbIr4pomA%3D%3D&Signature=VQ%2BmroYDCsaVkkFhb4O2usvahY4%3D", "saveStateEnabled": false, "completionPercentage": 0.95, "captionDataDir": null, "lmsRootURL": "https://openlearninglibrary.mit.edu", "sources": ["https://d2f1egay8yehza.cloudfront.net/MITx15.480x-V007200/MITx15.480x-V007200.m3u8", "https://d2f1egay8yehza.cloudfront.net/MITx15.480x-V007200_DTH.mp4"], "ytApiUrl": "https://www.youtube.com/iframe_api", "ytMetadataEndpoint": "", "transcriptLanguage": "en", "transcriptLanguages": {"en": "English"}, "prioritizeHls": false, "autohideHtml5": false, "recordedYoutubeIsAvailable": true, "generalSpeed": 1.0, "autoAdvance": false, "ytTestTimeout": 1500, "streams": "", "autoplay": false, "publishCompletionUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@f9f1f12e904f4381bea9ea6a753de5be/handler/publish_completion", "showCaptions": "true", "completionEnabled": false, "savedVideoPosition": 0.0, "transcriptTranslationUrl": "/courses/course-v1:MITx+15.480x+3T2021/xblock/block-v1:MITx+15.480x+3T2021+type@video+block@f9f1f12e904f4381bea9ea6a753de5be/handler/transcript/translation/__lang__", "start": 0.0, "duration": 360.81}'
data-bumper-metadata='null'
data-autoadvance-enabled="False"
data-poster='null'
tabindex="-1"
>
<div class="focus_grabber first"></div>
<div class="tc-wrapper">
<div class="video-wrapper">
<span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span>
<span tabindex="-1" class="btn-play fa fa-youtube-play fa-2x is-hidden" aria-hidden="true" aria-label="Play video"></span>
<div class="video-player-pre"></div>
<div class="video-player">
<div id="f9f1f12e904f4381bea9ea6a753de5be"></div>
<h4 class="hd hd-4 video-error is-hidden">No playable video sources found.</h4>
<h4 class="hd hd-4 video-hls-error is-hidden">
Your browser does not support this video format. Try using a different browser.
</h4>
</div>
<div class="video-player-post"></div>
<div class="closed-captions"></div>
<div class="video-controls is-hidden">
<div>
<div class="vcr"><div class="vidtime">0:00 / 0:00</div></div>
<div class="secondary-controls"></div>
</div>
</div>
</div>
</div>
<div class="focus_grabber last"></div>
</div>
</div>
</div>
</div>
</div>
© All Rights Reserved