Although the Environmental Protection Agency ( EPA ) establishes the t the tests to determine the fuel economy of new cars , it often does not perform them Instead , the test protocols are given to the car companies , and the companies perform the tests the hemselves . To keep the industry honest , the EPA runs some spot checks each year . A company claims that a certain vehicle model ( me ) on average . The EPA tests 30 vehi el gets 32 city miles per gallon hicles of this particular model and finds that the cars average 30 . 16 mrs . with standard deviation 1 . 18 mps . Does the data collected by the EPA suggest that the company is overestimating the vehicle's gas mileage ? Test the hypothesis using a = 0.05 ( a ) ( 0.5 points ) What is the parameter of interest ( b ) ( 1 point ) State Ho and Hi ( C ) ( 15 points ) Compute the valu e of the test statistic ( d ) ( 15 points ) Find the P- value ( e ) ( 15 points ) What decision do you reach for this