7. 8 9. Yards/Attempt
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
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Transcribed Image Text:5
6 7
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6 7 8
5
6 7 8
Yards/Attempt
Yards/Attempt
Yards/Attempt
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Yards/Attempt
(b) What does the scatter diagram developed in part (a) indicate about the relationship between the two variables?
The scatter diagram indicates no noticeable linear relationship between average number of passing yards per attempt and the percentage of games won by the team.
The scatter diagram indicates a negative linear relationship between average number of passing yards per attempt and the percentage of games won by the team.
The scatter diagram indicates a positive 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. (Round your numerical values to
three decimal places.)
(d) Provide an interpretation for the slope of the estimated regression equation.
The slope gives the change in the average number of passes per attempt for every one percentage point increase in the percentage of games won.
The slope gives the change in the percentage of games won for every one yard increase in the average number of passes per attempt.
The slope gives the average number of passes per attempt when the percentage of games won is 0%.
The slope gives the change in the average number of passes per attempt for every one percentage point decrease in the percentage of games won.
The slope gives the percentage of games won when the average number of passes per attempt is 0.
Win %
O O O
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 average number of passing yards per attempt (Yards/Attempt) and the percentage of games won (WinPct) for a random sample of 10 NFL teams for the 2011 season.t
Team
Yards/Attempt
WinPct
Arizona Cardinals
6.5
50
Atlanta Falcons
7.1
63
Carolina Panthers
7.4
38
Chicago Bears
6.4
50
Dallas Cowboys
7.4
50
New England Patriots
8.3
81
Philadelphia Eagles
7.4
50
Seattle Seahawks
6.1
44
St. Louis Rams
5.2
13
Tampa Bay Buccaneers
6.2
25
(a) Develop a scatter diagram with the number of passing yards per attempt on the horizontal axis and the percentage of games won on the vertical axis.
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Yards/Attempt
Yards/Attempt
% UIM
% UIM
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