A rule of thumb for determining sample size is to make sure that the largest subgroup to be analyzed contains 100 members.

Question

Quizplus · Accepted Answer

The "rule of thumb" for determining sample size does not specifically state that the largest subgroup to be analyzed must contain 100 members. Sample size determination is influenced by factors such as the expected effect size, desired power, significance level, and variability within the population, rather than a fixed number for subgroup sizes.

A Rule of Thumb for Determining Sample Size Is to Make