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5.2.14-T 15 Question Help Standardized Test Composite Scores Assume a member is selected at random from the population repres
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Answer #1

Here mean=20.7 and standard deviation=5.4

Now we need to find P(27< I<32)

As distribution is normal we can convert to z

. 27 - 20.7 P122 P(27 < X < 32) = PO 04) = 5.4 2.09) = 0.1027 32 - 20.7 -) = P(1.17 < 5.4 <

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