Question: According to the Energy Information Association (as reported in USA Today March 15, 1994) the average annual miles driven per vehicle in the United State is 10.6 thousand miles. Suppose that a random sample of 36 vehicles owned by residents of Chicago showed that the average mileage driven last year was 10.2 thousand miles with standard deviation 600 miles. Does this indicate that the average miles driven per vehicle in Chicago is different (higher or lower) than the national average? Use a 0.05 level of significance.