prob and stats
posted by Anonymous .
11. Assume that the population of heights of male college students is approximately normally distributed with mean m of 72.15 inches and standard deviation s of 6.39 inches. A random sample of 96 heights is obtained. Show all work.
(A) Find
(B) Find the mean and standard error of the distribution
(C) Find
(D) Why is the formula required to solve (A) different than (C)?
(Points : 12)

A and C are not complete. Copy and paste may not work here.
B. mean = 72.15
SEm = SD/√n