| 试验号 | 因素 | 提取率/% | |||
| A | B | C | D | ||
| 1 | 1 | 1 | 1 | 1 | 1.106 |
| 2 | 1 | 2 | 2 | 2 | 1.340 |
| 3 | 1 | 3 | 3 | 3 | 1.578 |
| 4 | 2 | 1 | 2 | 3 | 1.102 |
| 5 | 2 | 2 | 3 | 1 | 1.303 |
| 6 | 2 | 3 | 1 | 2 | 1.209 |
| 7 | 3 | 1 | 3 | 2 | 1.089 |
| 8 | 3 | 2 | 1 | 3 | 0.989 |
| 9 | 3 | 3 | 2 | 1 | 1.011 |
| K1 | 1.341 | 1.099 | 1.101 | 1.140 | — |
| K2 | 1.205 | 1.211 | 1.151 | 1.213 | — |
| K3 | 1.030 | 1.266 | 1.323 | 1.223 | — |
| 极差R | 0.311 | 0.167 | 0.222 | 0.083 | — |
| 主次因素 | A > C > B > D | ||||
| 最优方案 | A1B3C3D3 | ||||