14. On a standard measure of hearing ability, the mean is 300 and the standard deviation is 20. Give the Z scores for persons who score

(a) 340,

(b) 310, and

(c) 260. Give the raw scores for persons whose Z scores on this test are

(d) 2.4,

(e) 1.5,

(f) 0, and (g) -4.5.