Subway passengers spend an average of $6 a day on subway fares. The standard deviation of the expend


Question: Subway passengers spend an average of $6 a day on subway fares. The standard deviation of the expenditure is $2.5. A simple random sample of 40 passengers is taken.

a. What are the expected value, standard deviation, and shape of the sampling distribution of the sample mean?

b. What is the probability that the sample mean will be between $4 and $7?

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Solution: The answer consists of 1 page
Deliverables: Word Document

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