Model Weight (lb) Price ($) Fierro 7B 17.9 2,200 HX 5000 16.2 6,350 Durbin Ultralight 15.0 8,470 Schmidt 16.0 6,300 WSilton Advanced 17.3 4,100 Bicyclette vlo 13.2 8,700 Supremo Team 16.3 6,100 XTC Racer 17.2 2,680 D'Onofrio Pro 17.7 3,500 Americana #6 14.2 8,100

How much of the variation in the prices of the bicycles in the sample does the regression model you estimated in part (b) explain? If required, round your answer to two decimal places. The manufacturers of the D'Onofrio Pro plan to introduce the 16.8 lb D'Onofrio Elite bicycle later this year. Use the regression model you estimated in part (b) to predict the price of the D'Ononfrio Elite. If required, round your answer to the nearest whole number. Do not round intermediate calculations.