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  3. one gallon of gas is put into each of 30 test cars

One gallon of gas is put into each of 30 test cars The resulting gas...

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One gallon of gas is put into each of 30 test cars The resulting gas mileage values of the sample are computed with mean of 28 5 gallons per mile and a standard deviation of 1 2 miles per gallon What is the 95 confidence interval estimate of the mean mileage 27 36 29 64 28 42 28 58 28 46 28 54 28 1 28 9 27 3 29 7

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