What would you conclude about the validity of the claim

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Reference no: EM13193925

A business school claims that the average income of graduates of this school three years after graduation is $700.

a. If the claim is correct and if incomes are normally distributed with a standard deviation of $60, what is the probability that 36 randomly selected graduates have an average income of less than $675?

b. If a random sample of 36 graduates had an average weekly income of $675, what would you conclude about the validity of the claim?

Reference no: EM13193925

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