| 实验组数 | 因素 | 萘降解率 | |||
| A | B | C | D | ||
| 1 | 1 | 1 | 1 | 1 | 0.37 |
| 2 | 1 | 2 | 2 | 2 | 0.97 |
| 3 | 1 | 3 | 3 | 3 | 0.85 |
| 4 | 2 | 1 | 2 | 3 | 0.42 |
| 5 | 2 | 2 | 3 | 1 | 0.61 |
| 6 | 2 | 3 | 1 | 2 | 0.96 |
| 7 | 3 | 1 | 3 | 2 | 0.81 |
| 8 | 3 | 2 | 1 | 3 | 0.51 |
| 9 | 3 | 3 | 2 | 1 | 0.89 |
| k1 | 0.73 | 0.54 | 0.61 | 0.62 |
|
| k2 | 0.67 | 0.70 | 0.76 | 0.91 | |
| k3 | 0.74 | 0.90 | 0.76 | 0.59 | |
| R (极差) | 0.07 | 0.36 | 0.15 | 0.32 | |