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8) The management at an environmental consulting firm claims the mean weekly salary is $275 with a standard deviation of $34.
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Z. $ 264.50 275 275 0-30792 PCX < 264.50) = P(25-0.31 0:3783 264.50 34.10 (using خواط-2 0 264050 - 275 z = -1.95 34.10 Tuo (u

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