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Suppose you are told that a 95% confidence interval for the average price of a gallon of regular gasoline in your state is from$2.84to$4.25. Use

Suppose you are told that a 95% confidence interval for the average price of a gallon of regular gasoline in your state is from$2.84to$4.25. Use the fact that the confidence interval for the mean is in the formxEtox+Eto compute the sample mean and the maximal margin of errorE. (Round your answers to two decimal places.)

x= $

E= $

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