Last inning 2006.
Refer again to the regression analysis for average attendance and games won by American League baseball teams, seen in Exercise 30.
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 2006 World Champions, are not included in these data because they are a National League team. During the 2006 regular season, the Cardinals won 83 games and averaged 42,588 fans at their home games. Calculate the residual for this.
Exercise:
Attendance 2006. 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 2006 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 R2 of in this context.
c) Do the residuals show any pattern worth remarking on?
d) The point in the upper right of the plots is the New York Yankees. What can you say about the residual for the Yankees?