Which of the following is true Select all that are correct A

Which of the following is true? Select all that are correct

            A.      

The standard deviation of the sample mean decreases as the sample size increases.

            B.      

The standard deviation of the sample mean increases as the sample size increases.

            C.      

If you pick a large sample, the sample mean will be the population mean.

            D.      

The mean of the sample mean is the population mean.

Solution

A. The standard deviation of the sample mean decreases as the sample size increases.

C.If you pick a large sample, the sample mean will be the population mean.

D. The mean of the sample mean is the population mean.