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 following data show the average number of passing yards per attempt (yds/att) and the percentage of games won (WinPct) for a random sample of 10 NFL teams for the 2011 season (NFL website, February 12, 2012). Team YDS/ATT WinPct Ariziona Cardinals 6.1 19 Atlanta Falcons 6.6 27 Carinlona Panthers 7.1 31 Chicago Bears 7.5 34 Dallas Cowboys 7.0 37 New England Patriots 8.1 51 Philadelphia Eagles 6.4 27 Seattle seahawks 8.4 50 St. Louis Rams 6.4 27 Tampa Bay Bucceneer 7.9 49 a. Choose the correct a scatter diagram for these data: b. What does the scatter diagram developed in part (a) indicate about the relationship between the two variables? The scatter diagram indicates a - Select your answer -negativepositive linear relationship between average number of passing yards per attempt and the percentage of games won by the team. 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. Enter negative value as negative number. ( ) (to 2 decimals) d. Provide an interpretation for the slope of the estimated regression equation (to 1 decimal). The slope of the estimated regression line is approximately . So, for every - Select your answer -increasedecrease of one yard in the average number of passes per attempt, the percentage of games won by the team increases by %. e. The average number of passing yards per attempt for the other Team was . Use the estimated regression equation developed in part (c) to predict the percentage of games won by the team. (to 2 decimals)

Answer 1

For PartPart (a) and (b) scattered diagrams are not given in question,so i couldn't answer them. For part (e) X value is not given in question