Consider a sample of 30 wmu engineering alumni the

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Consider a sample of 30 WMU engineering alumni. The population average salary is $55,000 and amongst the 30 alumni the sample standard deviation is $12,000. Assuming the population is normally distributed answer the following:

A. What is the probability that the average salary of the sample is greater than $60,000?

B. What is the probability that the average salary of the sample is between $50,000 and $54,000?

C. What is the probability that the average salary of the sample is less than $48,000?

Reference no: EM13644844

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