The size of the sample required to estimate a population mean is ____ proportional to the ____ of the characteristic in the population.
A)directly,variability
B)inversely,variability
C)inversely,size
D)directly,size
E)uniformly,size

Question

Quizplus · Accepted Answer

The size of the sample required to estimate a population mean is directly proportional to the variability of the characteristic in the population. This means that as the variability of the characteristic increases, the sample size required to estimate the population mean also increases. This is because a larger sample is needed to achieve a more accurate estimate when the characteristic varies widely in the population.

The Size of the Sample Required to Estimate a Population