Question

Our data shows that a team with 49 wins has never missed the playoffs.
What is the expected points difference for a team to make it to the postseason?
Use the lecture solution file and more specifically the WingsReg model.

Code and Calculation

# Regression model from Activity 12
# W = 41 + 0.03259 * PTSdiff

# Solving for PTSdiff when W = 49
wins <- 49
intercept <- 41
slope <- 0.03259

PTSdiff <- (wins - intercept) / slope
PTSdiff
## [1] 245.4741

Answer

If a team wins 49 games, the expected points difference is approximately 245.5 points.
This means that to make the playoffs, a team should outscore their opponents by around 245 points in the season.
This estimate comes from the WingsReg linear regression model created in class.