12. A random sample is obtained fruin a population with i mean of It - 50 and i standard deviation af d -12

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

h. For a sample of n = 36 scores, would a sample meil of M = 55 be considered an extreme value of it at a fairly typical sample mata ?.