In determining the required sample size in an application involving an estimate for the population mean, if the population standard deviation is known, there is no compelling reason to select a pilot sample.

Question

Quizplus · Accepted Answer

When the population standard deviation is known, it can be directly used in the formula to calculate the required sample size for estimating the population mean, eliminating the need for a pilot sample to estimate variability.

In Determining the Required Sample Size in an Application Involving