In determining the sample size necessary to estimate a population proportion, which of the following information is not needed?
A)the maximum margin of error that can be tolerated
B)the confidence level required
C)a preliminary estimate of the true population proportion P
D)the mean of the population

Question

Quizplus · Accepted Answer

The mean of the population is not necessary to determine the sample size needed to estimate a population proportion. A preliminary estimate of the true population proportion, the maximum margin of error that can be tolerated, and the confidence level required are necessary inputs for determining the sample size.

In Determining the Sample Size Necessary to Estimate a Population