As the variability in a population decreases, the sample size should increase.

Question

Quizplus · Accepted Answer

If the variability in a population decreases, the sample size does not necessarily need to increase. The sample size should be determined based on the desired level of precision and confidence in the estimation of population parameters. However, if the variability decreases, a smaller sample size may be sufficient to achieve the same level of precision and confidence.

As the Variability in a Population Decreases, the Sample Size