Assume that the population of heights of female college students is approximately normally distributed with mean m of 67.26 inches and standard deviation s of 5.96 inches. A random sample of 78 heights is obtained. Show all work.
(A) Find out P(x>67.50)
(B) Find out the mean and standard error of the ? distribution
(C) Find out P(?>67.50)
(D) Why is the formula needed to solve (A) different than (C)?