(Answered) Question a random sample of 5 cars of type a that were test

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Question: A random sample of 5 cars of type A that were test driven yielded the following gas mileage on the highway: 29.1, 29.6, 30, 30.5, 30.8. A random sample of 5 cars of type B yielded the following gas mileage when test driven under similar conditions: 21, 26, 30, 35, 38.

(a) For each type of car, estimate the population mean gas mileage.

(b) For each type of car, estimate the population variance of gas mileage.

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