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<h2 class="hd hd-2 unit-title">Confidence intervals: three views</h2>
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<h2 class="hd hd-2 unit-title">Confidence intervals: non-normal data</h2>
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<h2 class="hd hd-2 unit-title">Class 23 reading questions: confidence intervals for non-normal data</h2>
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Be sure to give your answers to at least 3 decimal places. The answer boxes also accept Matlab style arithmetic expressions. </p>
<p><b class="bf">1.</b> Suppose you ran a poll asking a sample of 100 statisticians if they liked p-values. If 52 of them say yes and the rest say no, what is the rule of thumb 95% confidence interval for the percentage of all statisticians who like p-values? </p>
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<p><b class="bf">2.</b> How many statisticians do you need to poll so that the width of the 95% confidence interval is at most 5%? (Again, use the rule of thumb confidence interval.) </p>
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