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What is the mean of the average commute times

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Reference no: EM13113002

The mean commute time in the metro New York area is 45 minutes with a standard deviation of 15 minutes.

A) According to the central limit theorem, what is the mean of the average commute times for samples of size 50? What is the standard deviation of this "distribution of averages"?

B) What is the probability that a sample of 50 commuters has mean commute time greater than 50 minutes?

Reference no: EM13113002

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