Mathematics, 03.08.2019 00:10, LilFlamingo247
Acar company says that the mean gas mileage for its luxury sedan is at least 23 miles per gallon (mpg). you believe the claim is incorrect and find that a random sample of 7 cars has a mean gas mileage of 21 mpg and a standard deviation of 5 mpg. at alpha equals 0.05, test the company's claim. assume the population is normally distributed.
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Acar company says that the mean gas mileage for its luxury sedan is at least 23 miles per gallon (mp...
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