Using a random sample of 30 coaches and a population


An NCAA study reported that the average salary of the 300 major college football coaches is $1.47 million. Using a random sample of 30 coaches and a population standard deviation of $300,000, what is the probability that the sample mean is between $1.4 million and $1.5 million per year? IIC 0.9159 ICI 0.8660 ICI 0.7754 ICI 0.6829

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Business Management: Using a random sample of 30 coaches and a population
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