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15 ISL JUSPUSSI O The monthly overtime for employees of Freds Manufacturing Company is normal with a mean of 23 hours and a
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X ~N( 28, 2-1) U=28,6-201 n=9 Using CLT, * NN(Mion 2.1 M = 28, = 0.7 x - 28 za ~N(0,1). 0.7 P( 28-63 < x < 29:47) = P(X< 29:4

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