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A road averages 2165 vehicles per day with a standard deviation of 485 vehicles per day. A sample of 33 days was taken. a) What

A road averages 2165 vehicles per day with a standard deviation of 485 vehicles per day. A sample of 33 days was taken.

a) What is the probability that the sample mean is more than 2200 vehicles per day. Show computations.

b) What is the probability that the sample mean is between 2100 and 2300 vehicles per day

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