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Mileage claimed by the company

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A car company claims that its compact model gets 31 miles per gallon. A government inspector tests 38 of the company cars and finds that the average mileage is 29.7 mpg with a standard deviation of 2.2 mpg. Test if the mileage found is significantly less than the mileage claimed by the company using a = 0.01.

Reference no: EM132286329

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