Use the following data set for Exercises 27–33. Note that is a dummy variable.
| −0.7 | 2 | 0.1 | 0 |
| 6.4 | 4 | −2.5 | 1 |
| 2.8 | 6 | 2.7 | 0 |
| 9.4 | 8 | 2.8 | 1 |
| 8.6 | 10 | −1.6 | 0 |
| 13.1 | 12 | 1.0 | 1 |
| 12.2 | 14 | −1.4 | 0 |
| 19.1 | 16 | −0.5 | 1 |
| 18.8 | 18 | 1.0 | 0 |
| 23.2 | 20 | −2.3 | 1 |
29. Interpret the coefficient for the dummy variable.
13.3.29
For each increase in one unit of the variable , the estimated value of increases by 3.55 units when the values of and are held constant.