Question 481510: 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.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! 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.
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For each of these use the formula:
z = (x-u)/sigma to get the z-score
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Use the formula:
x = z*sigma + u to get the raw scores
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Cheers,
Stan H.
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