To estimate the required sample size for a proportion, one method is to take a small pilot sample to estimate π and then apply the sample size formula.

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This is a common method for estimating the required sample size for a proportion. A small pilot sample is used to estimate the proportion parameter, usually denoted as π, and this estimate is plugged into the sample size formula to determine the necessary sample size for a desired level of precision and confidence.

To Estimate the Required Sample Size for a Proportion, One