If the sample size is 4000, and the standard deviation of the sample is 200, then the standard error is:
A)1
B)20
C)200
D)2

Question

Quizplus · Accepted Answer

The standard error is the standard deviation of the sampling distribution of the sample mean. It is calculated by dividing the standard deviation of the sample by the square root of the sample size. In this case, the standard error is 200 / sqrt(4000) = 20.

If the Sample Size Is 4000, and the Standard Deviation