Question

The National Football League (NFL) records a variety of performance data for individuals and teams. To investigate the importance of passing on the percentage of games won by a team, the data in the Excel Online file below show the conference (Conf), average number of passing yards per attempt (Yds/Att), the number of interceptions thrown per attempt (Int/Att), and the percentage of games won (Win96) for a random sample of 16 NFL teams for a season. Construct a spreadsheet to answer the following questions. Open spreadsheet a. Develop the estimated regression equation that could be used to predict the percentage of games won given the average number of passing yards per attempt (to 1 decimal). Win %-bo + bi , Yds/Att bo bi b. Develop the estimated regression equation that could be used to predict the percentage of games won given the number of interceptions thrown per attempt (to 1 decimal). Win%-bo + b . Int/Att c. Develop the estimated regression equation that could be used to predict the percentage of games won given the average number of passing yards per attempt and the number of interceptions thrown per attempt (to 1 decimal) bi d. The average number of passing yards per attempt for the Kansas City Chiefs was 6.2 and the number of interceptions thrown per attempt was 0.036. Use the estimated regression equation developed in part (c) to predict the percentage of games won by the Kansas City Chiefs. (Note: For this season the Kansas City Chiefs' record was 7 wins and 9 losses.) Compare your prediction to the actual percentage of games won by the Kansas City Chiefs (to whole number) Conf NFC NFC NFC AFC NFC NFC AFC AFC AFC NFC AFC NFC AFC NFC AFC NFC Int/Att Win% Yds/Att leam 6.5 7.1 7.5 6.0 7.2 8.7 7.4 5.7 0.043 0.022 0.034 0.025 0.025 0.014 0.018 0.027 0.032 0.032 0.020 0.020 0.045 0.012 0.025 0.042 Arizona Cardinals Atlanta Falcons Carolina Panthers Cincinnati Bengals Detroit Lions Green Bay Packers Houstan Texans Indianapolis Colts Jacksonville Jaguars Minnesota Vikings New England Patriots New Orleans Saints Oakland Raiders San Francisco 49ers Tennessee Titans Washington Redskins 50.0 62.4 37.5 56.2 62.6 93.5 62.3 12.4 31.4 18.6 81.1 81.2 50.0 81.2 56.0 31.4 5.7 8.4 7.9 7.5 6.5 6.8 6.5

Answer 1

as, Rvl (b) euaion Vakne la Covves ody n ce penden vbaes hald onsLant pavl (c) ths value esbmale coakfdet 8 s 0.0026 сое wlalionshipbindependent voviable vegession ecaltn. ( o o.gqis. :eン69-s".tha chtoured R-Squavod 0djusted T the mode used xo chaukin good ness