Table 9 Analysis of variance for TWR (after backward elimination)
Source | Sum of Squares | DF | Mean Square | F - Value | Prob. > F | Â |
|---|---|---|---|---|---|---|
Model | 17.54 | 6 | 2.92 | 521.21 | <0.0001 | Significant |
A | 0.19 | 1 | 0.19 | 33.31 | <0.0001 | Â |
B | 8.60 × 10-03 | 1 | 8.60 × 10-03 | 1.53 | 0.223 |  |
D | 9.98 | 1 | 9.98 | 1779.24 | <0.0001 | Â |
E | 0.033 | 1 | 0.033 | 5.84 | 0.0204 | Â |
D2 | 7.29 | 1 | 7.29 | 1300.3 | <0.0001 | Â |
BD | 0.04 | 1 | 0.04 | 7.06 | 0.0114 | Â |
Residual | 0.22 | 39 | 5.61 × 10-03 |  |  |  |
Lack of Fit | 0.21 | 34 | 6.19 × 10-03 | 3.71 | 0.0734 | Not significant |
Pure Error | 8.34 × 10-03 | 5 | 1.67 × 10-03 |  |  |  |
Cor. Total | 17.76 | 45 | Â | Â | Â | Â |
Std. Dev. = 0.075 |  | R-Squared = 0.9877 | ||||
Mean = 0.38 |  | Adj R-Squared = 0.9858 | ||||
C.V. = 19.89 |  | Pred R-Squared = 0.983 | ||||
PRESS = 0.3 |  | Adeq Precision = 65.095 | ||||