A random sampleis obtained from a population with a meanof u = 50 and a standard deviationof o = 12.

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

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

1. The standard standard deviation of the sample mean is 12/2 = 6. A value of …

The solution discusses a random sample regarding extreme value or fairly typical sample mean.