Consumer Reports is conducting tests to determine the distance a certain car model will travel on one gallon of gas. In a sample of 9 cars, the average is found to be 28.2 miles. If the standard deviation for the model is 2.7 miles, find a 99% confidence interval for the mean distance of these cars using one gallon of gas. Estimate your answers according to the values in the problem

_______ miles to ____miles