The expected value of the sampling distribution of the sample mean $\bar { X }$ equals the population mean $\mu$:
A)when the population is normally distributed.
B)when the population is symmetric.
C)when the population size N 30.
D)for all populations.

Question

The expected value of the sampling distribution of the sample mean $\bar { X }$ equals the population mean $\mu$:
A)when the population is normally distributed.
B)when the population is symmetric.
C)when the population size N > 30.
D)for all populations.

Quizplus · Accepted Answer

The Answer is D

The Expected Value of the Sampling Distribution of the Sample Xˉ\bar { X }Xˉ

The Expected Value of the Sampling Distribution of the Sample $\bar { X }$