It has been estimated that the G-car obtains a mean of 40 miles per gallon on the highway, and the company that manufactures the car claims that it exceeds this estimate in highway driving. To support its assertion, the company randomly selects 36 G-cars and records the mileage obtained for each car over a driving course similar to that used to obtain the estimate. The following data resulted: miles per gallon, s=6 miles per gallon. Calculate the value of if the true value of the mean is really 42 miles per gallon. Use

Question

It has been estimated that the G-car obtains a mean of 40 miles per gallon on the highway, and the company that manufactures the car claims that it exceeds this estimate in highway driving. To support its assertion, the company randomly selects  36 G-cars and records the mileage obtained for each car over a driving course similar to that used to obtain the estimate. The following data resulted:  miles per gallon,  s=6  miles per gallon. Calculate the value of  if the true value of the mean is really 42 miles per gallon. Use

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The Answer of It has been estimated that the G-car obtains a mean of 40 miles per gallon on the highway, and the company that manufactures the car claims that it exceeds this estimate in highway driving. To support its assertion, the company randomly selects  36 G-cars and records the mileage obtained for each car over a driving course similar to that used to obtain the estimate. The following data resulted:  miles per gallon,  s=6  miles per gallon. Calculate the value of  if the true value of the mean is really 42 miles per gallon. Use

It Has Been Estimated That the G-Car Obtains a Mean