1. Regression Basics
Tobias
Econ 472

2. Baseball Example
As a baseball fan (?) you want to investigate the relationship between team ERA and number of wins in a given season.
You have a sample of 30 observations from the 2001 season. (Arizona beat the Yankees in the World Series in 2001).
The scatterplot of data is provided in the following graph.
Tobias
Econ 472

3. Tobias
Econ 472

4. Tobias
Econ 472

5. Tobias
Econ 472

6. Tobias
Econ 472

7. Tobias
Econ 472

8. Tobias
Econ 472

9. Tobias
Econ 472

10. Tobias
Econ 472

11. Tobias
Econ 472

12. Tobias
Econ 472

13. Tobias
Econ 472

14. Tobias
Econ 472