In: Statistics and Probability
The following table lists a portion of Major League Baseball's (MLB's) leading pitchers, each pitcher's salary (In $ millions), and earned run average (ERA) for 2008.
Salary | ERA | |
J. Santana | 10.0 | 2.51 |
C. Lee | 3.0 | 2.52 |
T. Lincecum | 0.2 | 2.27 |
C. Sabathia | 10.0 | 2.13 |
R. Halladay | 9.0 | 2.12 |
J. Peavy | 4.9 | 2.56 |
D. Matsuzaka | 6.8 | 2.87 |
R. Dempster | 7.0 | 2.88 |
B. Sheets | 10.0 | 2.57 |
C. Hamels | 0.4 | 2.83 |
A. Estimate the model: Salaty = Bo + B1 ERA + E. (Negative values should be indicated by a minus sign. Enter your answers, in millions, rounded to 2 decimal places.)
Salary^ = ________ + ________ ERA
B. Use the estimated model to predict salary for each player, give, his ERA. For example, use the sample regression equation to predict the salary for J. Santana with ERA = 251. (Round coeffecient estimates to at least 4 decimal places and final answers, in millions, to 2 decimal places.)
Predicted Salary (in $ millions) : J. Santana = __________; C. Lee = __________; T. Lincecum = __________; C. Sabathia = __________; R. Halladay = __________; J. Peavy = __________; D. Matsuzaka = __________; R. Dempster = __________; B. Sheets = __________; C. Hamels = __________.
C. Derive the corresponding residuals. (Negative values should be indicated by a minus sign. Round coefficient estimates to at least 4 decimal places and final answers, in millions, to 2 decimal places.)
Residual (e=y-y^) : J. Santana = __________; C. Lee = __________; T. Lincecum = __________; C. Sabathia = __________; R. Halladay = __________; J. Peavy = __________; D. Matsuzaka = __________; R. Dempster = __________; B. Sheets = __________; C. Hamels = __________.