If all the possible random samples with n = 36 scores are selected from a normal population with µ = 80 and σ = 18,and the mean is calculated for each sample,then what is the average of all the sample means?
A)2
B)6
C)80
D)It cannot be determined without additional information.

Question

If all the possible random samples with n = 36 scores are selected from a normal population with µ = 80 and σ = 18,and the mean is calculated for each sample,then what is the average of all the sample means?​
A)​2
B)​6
C)​80
D)​It cannot be determined without additional information.

Quizplus · Accepted Answer

The average of all the sample means is equal to the population mean, which is given as µ=80. Thus the answer is C.

If All the Possible Random Samples with N = 36