| Model | Sum of Squares | df | Mean Square | F | Sig. | |
| 1 | Regression | 47.549 | 1 | 47.549 | 252.396 | 0.000a |
| Residual | 60.284 | 320 | 0.188 |
|
| |
| Total | 107.833 | 321 |
|
|
| |
| 2 | Regression | 52.060 | 2 | 26.030 | 148.883 | 0.000b |
| Residual | 53.773 | 319 | 0.175 |
|
| |
| Total | 107.833 | 321 |
|
|
| |
| 3 | Regression | 52.820 | 3 | 17.607 | 101.775 | 0.000c |
| Residual | 55.013 | 318 | 0.173 |
|
| |
| Total | 107.833 | 321 |
|
|
| |