Congress regulates corporate fuel economy and sets an annual gas mileage for cars. A company with a large fleet of cars hopes to meet the goal of 38.7 mpg or better for their fleet of cars. To see if the goal is being​ met, they check the gasoline usage for 41 company trips chosen at​ random, finding a mean of 41.70 mpg and a standard deviation of 4.93 mpg. Is this strong evidence that they have attained their fuel economy​ goal? Use 0.05 as the​ P-value cutoff level. Also find P-Value.

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Congress regulates corporate fuel economy and sets an annual gas mileage for cars. A company with a large fleet of cars hopes to meet the goal of 38.7 mpg or better for their fleet of cars.

To see if the goal is being​ met, they check the gasoline usage

for 41 company trips chosen at​ random, finding a mean of

41.70 mpg and a standard deviation of 4.93 mpg. Is this strong evidence that they have attained their fuel economy​ goal?

Use 0.05 as the​ P-value cutoff level.

Also find P-Value.

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