| Factor | Estimated value |
| M | 17.35 |
| B (−1, 1) | 11.40 |
| C (−1, 1) | 10.85 |
| D (−1, 1) | 7.57 |
| B (−1, 1)*C (−1, 1) | 12.14 |
| B (−1, 1)*D (−1, 1) | 4.06 |
| C (−1, 1)*D (−1, 1) | 7.27 |
| B (−1, 1)*C (−1, 1)*D (−1, 1) | 6.20 |