An auto maker claims one model of car can travel 28 miles per gallon, but a consumer reporter thinks this is too high. A hypothesis test is conducted with 60 cars that finds their average mileage is 26.2 miles per gallon with a sample standard deviation of 5.5 miles per gallon. What is the observed level of significance of this test?

An auto maker claims one model of car can travel 28 miles per gallon, but a consumer reporter thinks this is too high. A hypothesis test is conducted with 60 cars that finds their average mileage is 26.2 miles per gallon with a sample standard deviation of 5.5 miles per gallon. What is the observed level of significance of this test? O a. 0.0102 O b. 0.0041 O c. 0.0043 O d. 0.0055