You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 36%. You would like to be 99% confident that your estimate is within 4.5% of the true population proportion. How large of a sample size is required?

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Asked May 28, 2019
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You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 36%. You would like to be 99% confident that your estimate is within 4.5% of the true population proportion. How large of a sample size is required?

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Expert Answer

Step 1

According to previous evidence, the population proportion (p) is 36%, that is, 0.36.

Here, the margin of error (E) ...

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