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)
Team
Conference...