Find the probability that a single randomly selected policy

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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 146000 dollars. Assume the standard deviation is 41000 dollars. Suppose you take a simple random sample of 71 graduates.

Find the probability that a single randomly selected policy has a mean value between 152325.5 and 161570.6 dollars. P(152325.5 < X < 161570.6) = (Enter your answers as numbers accurate to 4 decimal places.)

Reference no: EM132951519

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