Your sample of 12 people is being compared to a known population with a mean of 200 and a variance of 36.What is the variance of the distribution of means?
A)0.50
B)0.71
C)1.73
D)3.00

Question

Quizplus · Accepted Answer

The formula for the variance of the distribution of means is:
variance of distribution of means = population variance / sample size

In this case, the population variance is 36 and the sample size is 12.

variance of distribution of means = 36 / 12 = 3.00

Therefore, the best choice is D.

Your Sample of 12 People Is Being Compared to a Known