Question 209029: 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! 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
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Use the formula z(x) = (x-u)/sigma
(a) 340,
(b) 310, and
(c) 260.
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Give the raw scores for persons whose Z scores on this test are
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Use the formula x(z) = z(sigma)+u
(d) 2.4,
(e) 1.5,
(f) 0,
(g) 4.5
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Cheers,
Stan H.
Reply to stanbon@comcast.net or algebra.com
Cheers,
Stan H.
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