Question 849997: The mean salary offered to students who are graduating from Coastal State University this year is $24,245, with a standard deviation of $3712. A random sample of 85 Coastal State students graduating this year has been selected. What is the probability that the mean salary offer for these 85 students is $23,500 or more?
Carry your intermediate computations to at least four decimal places. Round your answer to at least three decimal places.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! The mean salary offered to students who are graduating from Coastal State University this year is $24,245, with a standard deviation of $3712. A random sample of 85 Coastal State students graduating this year has been selected. What is the probability that the mean salary offer for these 85 students is $23,500 or more?
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z(23,500) = (23500-24245)/[3712/sqrt(85)] = -1.8504
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P(x-bar >= 23500) = P(z >= -1.8504) = 0.9679
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Cheers,
Stan H.
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Carry your intermediate computations to at least four decimal places. Round your answer to at least three decimal places.
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