(a) Z score = (100 - 150) / 25 = -2
(b) Z score = (120 - 150) / 25 = -1
(c) Z score = (140 - 150) / 25 = -0.4
(d) Raw score = -1 * 25 + 150 = 125
(e) Raw score = -0.8 * 25 + 150 = 130
(f) Raw score = 0.2 * 25 + 150 = 155
On a measure of artistic ability, the mean for college students in New Zealand is 150 and the
standard deviation is 25. Give the z scores for new Zealand college students who score (a) 100,
(b) 120 and (c) 140. Give a raw scores for persons whose Z scores on this test are (d) -1, (e) -0.8
and (f) 0.2.
1 answer
1 answer