Two major automobile manufacturers have produced compact cars withengines of the same size. We are interested in determining whether or not there is a significant difference in the mean MPG (miles per gallon)when testing for the fuel efficiency of thesetwo brands of automobiles. A random sample of eight cars from each manufacturer is selected, and eight drivers are selected to drive each automobile for a specified distance. The following data(in miles per gallon)show the results of the test.Assume the population of differences is normally distributed.

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