Trials | X1 (˚C) | X2 (h) | Y (response) |
| 58.66 | 68.78 | 19.96 |
Factorial trials | 76.34 | 68.78 | 23.22 |
| 58.66 | 111.22 | 20.42 |
| 76.34 | 111.22 | 33.4 |
| 55.00 | 90.00 | 18.82 |
Star trials | 80.00 | 90.00 | 31.42 |
| 67.50 | 60.00 | 18.82 |
| 67.50 | 120.00 | 26.42 |
| 67.50 | 90.00 | 23.82 |
| 67.50 | 90.00 | 21.42 |
Center trials | 67.50 | 90.00 | 22.88 |
| 67.50 | 90.00 | 21.42 |
| 67.50 | 90.00 | 22.42 |