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Attendance 2013, last inning Refer again to the regression
Chapter 6, Problem 48E(choose chapter or problem)
Problem 48E
Attendance 2013, last inning Refer again to the regression analysis for average attendance and games won by American League baseball teams, seen in Exercise 44.
a) Write the equation of the regression line.
b) Estimate the Average Attendance for a team with 50 Wins.
c) Interpret the meaning of the slope of the regression line in this context.
d) In general, what would a negative residual mean in this context?
e) The St. Louis Cardinals, the 2013 NL Champions, are not included in these data because they are a National League team. During the 2013 regular season, the Cardinals won 97 games and averaged 41,602 fans at their home games. Calculate the residual for this team, and explain what it means.
Exercise 44:
Attendance 2013, revisited In the previous chapter, you looked at the relationship between the number of wins by American League baseball teams and the average attendance at their home games for the 2013 season. Here are the scatterplot, the residuals plot, and part of the regression analysis:
a) Do you think a linear model is appropriate here? Explain.
b) Interpret the meaning of R2 in this context.
c) Do the residuals show any pattern worth remarking on?
d) The point at the top of the plots is the New York Yankees. What can you say about the residual for the Yankees?
Questions & Answers
QUESTION:
Problem 48E
Attendance 2013, last inning Refer again to the regression analysis for average attendance and games won by American League baseball teams, seen in Exercise 44.
a) Write the equation of the regression line.
b) Estimate the Average Attendance for a team with 50 Wins.
c) Interpret the meaning of the slope of the regression line in this context.
d) In general, what would a negative residual mean in this context?
e) The St. Louis Cardinals, the 2013 NL Champions, are not included in these data because they are a National League team. During the 2013 regular season, the Cardinals won 97 games and averaged 41,602 fans at their home games. Calculate the residual for this team, and explain what it means.
Exercise 44:
Attendance 2013, revisited In the previous chapter, you looked at the relationship between the number of wins by American League baseball teams and the average attendance at their home games for the 2013 season. Here are the scatterplot, the residuals plot, and part of the regression analysis:
a) Do you think a linear model is appropriate here? Explain.
b) Interpret the meaning of R2 in this context.
c) Do the residuals show any pattern worth remarking on?
d) The point at the top of the plots is the New York Yankees. What can you say about the residual for the Yankees?
ANSWER:
Step 1 of 6
The relationship between the wins of a American league baseball team and their average attendance at their home games is shown below:
