Answered: The National Football League (NFL)…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 10CYU

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(d) The average number of passing yards per attempt for the Dallas Cowboys during the 2011 season was 7.8, and the team's number of interceptions thrown per attempt was 0.021. Use the
estimated regression equation developed in part (c) to predict the percentage of games won by the Dallas Cowboys during the 2011 season. (Note: For the 2011 the 2011 season, the Dallas
Cowboys' record was 7 wins and 9 loses.)
If required, round your answer to one decimal digit. Do not round intermediate calculations.
%
Compare your prediction to the actual percentage of games won by the Dallas Cowboys. If required, round your answer to one decimal digit.
The Dallas Cowboys performed worse
than what we predicted by
(e) Did the estimated regression equation that uses only the average number of passing yards per attempt as the independent variable to predict the percentage of games won provide a good fit?
The input in the box below will not be graded, but may be reviewed and considered by your instructor.
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Transcribed Image Text: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 following data 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 (Win%) for a random sample of 16 NFL teams for the 2011 season (NFL web site, February 12, 2012). Click on the datafile logo to reference the data. DATA file Team Arizona Cardinals Atlanta Falcons Carolina Panthers Cincinnati Bengals Conference Yds/Att Int/Att Win% NFC 6.5 0.042 50.0 NFC 7.1 0.022 62.5 NFC 7.4 0.033 37.5 AFC 6.2 0.026 56.3 Detroit Lions NFC 7.2 0.024 62.5 Green Bay Packers NFC 8.9 0.014 93.8 Houstan Texans AFC 7.5 0.019 62.5 Indianapolis Colts Jacksonville Jaguars Minnesota Vikings New England Patriots AFC 5.6 0.026 12.5 AFC 4.6 0.032 31.3 NFC 5.8 0.033 18.8 AFC 8.3 0.020 81.3 New Orleans Saints lOakland Raiders NFC 8.1 0.021 81.3 AFC 7.6 0.044 50.0 San Francisco 49ers NFC 6.5 0.011 81.3 Tennessee Titans AFC 6.7 0.024 56.3 Washington Redskins NFC 6.4 0.041 31.3 Let x1 represent Yds/Att. Let x2 represent Int/Att.

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