Q1: Why does the sample size play such an important role in reducing the standard error of the mean? What are the implications of increasing the sample size?
Q2: Why might one be interested in determining a sample size before a study is undertaken? How do population variability and a level of certainty affect the size of the sample needed in a study?© BrainMass Inc. brainmass.com December 20, 2018, 3:59 am ad1c9bdddf
Answers to Sample Size and Population Mean are provided, with detailed explanations.