After calculating the difference between sample means of all possible samples from a population and the population mean, we would expect the mean of these differences to be
A) equal to the population mean.
B) higher or less than the population mean.
C) zero.
D) None of these are true.

Question

Quizplus · Accepted Answer

The definition of the sampling distribution of the mean is that its mean is equal to the population mean. Therefore, the mean of the differences between sample means and population mean is also equal to zero.

After Calculating the Difference Between Sample Means of All Possible