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Suppose the Average Mileage Rating (In Miles Per Gallon) of a Particular

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Suppose the average mileage rating (in miles per gallon) of a particular model car is 28 mpg with a standard deviation of 8 mpg. A random sample of 64 cars of this model is selected.
Find the mean of the sampling distribution.
______________
Find the standard deviation.
______________
What is the probability that the sample mean exceeds 30 mpg?
______________

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