Table 9 Analysis of variance for the modified quadratic and 2FI.
Source | Sum of squares | df | Mean square | F-value | p-value | Â |
|---|---|---|---|---|---|---|
Step 1 | ||||||
 Model | 4.488E+05 | 9 | 49,870.96 | 1711.64 |  < 0.0001 | Significant |
 A–A | 1.904E+05 | 1 | 1.904E+05 | 6534.99 |  < 0.0001 |  |
 B–B | 28.84 | 1 | 28.84 | 0.9899 | 0.3529 |  |
 C–C | 15,524.10 | 1 | 15,524.10 | 532.81 |  < 0.0001 |  |
 AB | 46,958.89 | 1 | 46,958.89 | 1611.69 |  < 0.0001 |  |
 AC | 20,135.61 | 1 | 20,135.61 | 691.08 |  < 0.0001 |  |
 BC | 2579.12 | 1 | 2579.12 | 88.52 |  < 0.0001 |  |
 A2 | 52,891.14 | 1 | 52,891.14 | 1815.29 |  < 0.0001 |  |
 B2 | 26,059.64 | 1 | 26,059.64 | 894.40 |  < 0.0001 |  |
 C2 | 77,045.52 | 1 | 77,045.52 | 2644.30 |  < 0.0001 |  |
 Residual | 203.96 | 7 | 29.14 |  |  |  |
 Lack of fit | 0.7550 | 3 | 0.2517 | 0.0050 | 0.9994 | Not significant |
 Pure error | 203.20 | 4 | 50.80 |  |  |  |
 Cor total | 4.490E+05 | 16 |  |  |  |  |
Step 2 | ||||||
 Model | 32,346.29 | 6 | 5391.05 | 625.47 |  < 0.0001 | Significant |
 A–A | 1014.53 | 1 | 1014.53 | 117.70 |  < 0.0001 |  |
 B–B | 16,736.27 | 1 | 16,736.27 | 1941.73 |  < 0.0001 |  |
 AB | 3795.18 | 1 | 3795.18 | 440.31 |  < 0.0001 |  |
 AC | 970.32 | 1 | 970.32 | 112.58 |  < 0.0001 |  |
 BC | 9574.62 | 1 | 9574.62 | 1110.84 |  < 0.0001 |  |
 Residual | 86.19 | 10 | 8.62 |  |  |  |
 Lack of fit | 31.68 | 6 | 5.28 | 0.3874 | 0.8561 | Not significant |
 Pure error | 54.51 | 4 | 13.63 |  |  |  |
 Cor total | 32,432.49 | 16 |  |  |  |  |
