Question: A random sample is obtained from a population with a mean µ=50 and a standard deviation of ð=12.

a. For a sample of n=4 scores, would a sample mean of M=55 be considered an extreme value or is it a fairly typical sample mean?

b. For a sample of n=36 scores, would a sample mean of M=55 be considered an extreme value or is a fairly typical sample mean.