Question: Question 37: Gas Mileage. A car company says that the mean gas mileage for its luxury sedan is at least 21 miles per gallon (mpg). You believe that the claim is incorrect, and find that a random sample of five cars has a means gas mileage of 19 mpg and a standard deviation of 4 mpg. Assume the gas mileage of all company’s luxury sedans is normally distributed. At \[\alpha =0.05\], test the company’s claim.