Xr04-76 Repeat Exercise 4.75 for the 2009 baseball
season.
4.77 Xr04-77 Refer to Exercise 4.75. The practitioner
also recorded the average away attendance for each
team in the 2012 season. Because visiting teams take
a share of the gate, owners should be interested in
this analysis.
a. Are visiting team attendance related to number
of wins?
b. Estimate the marginal number of tickets sold
for each additional game won.
4.78 Xr04-78 Repeat Exercise 4.77 for the 2009 season.
4.79 Xr04-79 The number of wins and payrolls for each
team in the National Football League (NFL) in the
2012–2013 season was recorded.
a. Determine the marginal cost of one more win.
b. Calculate the coefficient of determination and
describe what this number tells you.