information on 200 motorcycles across the automobile industry and estimates the following regression equation: The standard errors are given in parentheses. She wants to find the effect on mileage of a change in age ( Age) of motorcycles. If the age of a motorcycle increases from 1 to 2 years, the predicted change in Mileagewillbempg. (Round your answer to two decimal places. Enter a minus sign if your answer is negative.) (Round your answer to two decimal places. Enter a minus sign if your answer is negative.) So, when the age of a motorcycle increases from 7 to 8 years, the decrease in total mileage will be as compared to the change when age increases from 1 to 2 years. The predicted change in mileage when the age of a motorcycle increases from 5 to 6 years is: Mileage=(^0+^16+^262)(^0+^15+^252)=(65)^1+(3625)^2=^1+11^2. If the F-statistic testing the hypothesis ^1+11^2=0 is F=291.12, then the 95% confidence interval for the change in the predicted value of mileage is (Round your answers to two decimal places. Enter a minus sign if your answer is negative.) we will the hypothesis ^1+11^2=0