The New England Patriots made headlines prior to the 2015 Super Bowl for allegedly playing with underinflated footballs. An underinflated ball is easier to grip, and therefore, less likely to be fumbled. What does the data say? The following data represent the number of plays a team has per fumble. For example, the Chicago Bears run 48 offensive plays for every fumble.

(a) Draw a boxplot of plays per fumble for all teams in the National Football League. Describe the shape of the distribution. Are there any outliers? If so, which team(s)?
(b) Playing in a dome (inside) removes the effect of weather (such as rain) on the game. Draw a boxplot of plays per fumble for teams who do not play in a dome. Are there any outliers? If so, which team(s)?

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Plays Team Team Dome Dome Plays Atlanta Falcons Yes 83 Saint Louis Rams Yes 50 New Orleans Saints Yes 80 Seattle Seahawks No 50 New England Patriots No 78 Detroit Lions Yes 49 Houston Texans Yes 61 Chicago Bears No 48 Minnesota Vikings San Francisco 49ers Yes 59 No 47 Baltimore Ravens No 58 New York Jets No 46 Carolina Panthers No 57 Denver Broncos No 46 San Diego Chargers Indianapolis Colts Tampa Bay Buccaneers No No 57 45 Dallas Cowboys Yes 56 Yes 45 Green Bay Packers No 55 Tennessee Titans No 45 New York Giants No 55 Oakland Raiders No 44 Cincinnati Bengals Miami Dolphins No 53 No 44 Pittsburgh Steelers No 52 Buffalo Bills No 43 Arizona Cardinals Kansas City Chiefs No 52 Yes 43 Jacksonville Jaguars No 51 Philadelphia Eagles No 42 Washington Redskins Cleveland Browns No 50 No 37