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Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the survey, assume the mean annual salary for graduates

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Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the survey, assume the mean annual salary for graduates 10 years after graduation is 183000 dollars. Assume the standard deviation is 40000 dollars. Suppose you take a simple random sample of 97 graduates. Find the probability that a single randomly selected policy has a mean value between 177720.2 and 179344.8 dollars. P(177/20.2

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