All the possible samples of n 3 scores are selected from a

All the possible samples of n = 3 scores are selected from a population with m = 30 and s = 5 and the mean is computed for each of the samples. If the average is calculated for all of the sample means, what value will be obtained?

Solution

The mean of sampling distribution is same as the population mean. Therefore, If the average is calculated for all of the sample means, m=30 value will be obtained.