Question: A population has a mean of \(\mu \) =100 and a standard deviation of \(\sigma \) = 20, Find the z-score corresponding to each of the following sample means obtained from this population.

a. M = 102 for a sample of n = 4 scores

b. M = 102 for a sample of n =100 scores

c. M = 95 for a sample of n = 16 scores

d. M = 95 for a ample of n = 25 scores