Question: The EPA (Environmental Protection Agency) writes the requirements for the tests new cars must be put through in order to determine the mean mileage values placed on the cars' sales stickers. However, they usually leave the performance of the tests to the automakers themselves, although EPA staff will do random spot checks on new vehicles in order to verify compliance by automakers.

The data for this question is in the column named Mileage. It is a set of city mileages recorded by the EPA for one new KIA car. Find and interpret the appropriate 97% confidence interval for the mean mileage for this car. Kia had posted (based 011 their own performance of the test) that the mean city mileage for the car was 30. Does the confidence interval support that statement? Why or why not?

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