Table 3.
24 full factorial experimental design with actual levels.
| Runs | A | B | C | D | R% actual | R% predicted | Residuals |
|---|---|---|---|---|---|---|---|
| 1 | 6 | 25 | 10 | 1 | 98.4 | 98.21 | 0.187 |
| 2 | 6 | 5 | 10 | 0 | 77.7 | 78.11 | −0.412 |
| 3 | 3 | 25 | 10 | 0 | 69.7 | 70.00 | −0.298 |
| 4 | 6 | 5 | 10 | 1 | 85.8 | 85.81 | −0.012 |
| 5 | 3 | 5 | 30 | 1 | 71.2 | 71.81 | −0.613 |
| 6 | 6 | 25 | 30 | 0 | 91.2 | 90.79 | 0.412 |
| 7 | 3 | 25 | 10 | 1 | 80.1 | 80.24 | −0.138 |
| 8 | 3 | 25 | 30 | 0 | 72.7 | 73.06 | −0.363 |
| 9 | 6 | 5 | 30 | 1 | 89.4 | 88.74 | 0.663 |
| 10 | 3 | 5 | 30 | 0 | 64.2 | 64.01 | 0.187 |
| 11 | 3 | 5 | 10 | 1 | 68.1 | 68.14 | −0.038 |
| 12 | 3 | 5 | 10 | 0 | 60.4 | 59.94 | 0.462 |
| 13 | 3 | 25 | 30 | 1 | 83.7 | 82.91 | 0.787 |
| 14 | 6 | 25 | 10 | 0 | 88.7 | 88.46 | 0.237 |
| 15 | 6 | 25 | 30 | 1 | 99.3 | 100.14 | −0.838 |
| 16 | 6 | 5 | 30 | 0 | 81.2 | 81.44 | −0.238 |
R%: removal efficiency.