Mathematics, 17.04.2020 04:57, mariahv105

Company with a large fleet of cars hopes to keep gasoline costs down and sets a goal of attaining a fleet average of at least 26 miles per gallon. To see if the goal is being met, they check the gasoline usage for 50 company trips chosen at random, finding a mean of 25.02 mpg and a standard deviation of 4.83 mpg. Is this strong evidence that they have failed to attain their fuel economy goal

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Company with a large fleet of cars hopes to keep gasoline costs down and sets a goal of attaining a...