Table 6.
ANOVA of the quadratic model for alkaline treatment of bamboo.
| Source | Sum of Squares | df | Mean Square | F-Value | p-Value (Prob > F) |
|---|---|---|---|---|---|
| Model | 14051.43 | 9 | 1561.27 | 129.17 | <0.0001 * |
| X1- concentration | 741.7 | 1 | 741.7 | 61.36 | 0.0001 |
| X2- soaking | 637.6 | 1 | 637.6 | 52.75 | 0.0002 |
| X3- drying | 8933.17 | 1 | 8933.17 | 739.08 | <0.0001 |
| X12 | 23.62 | 1 | 23.62 | 1.95 | 0.2048 |
| X22 | 89.02 | 1 | 89.02 | 7.36 | 0.03 |
| X32 | 110.25 | 1 | 110.25 | 9.12 | 0.0194 |
| X1 X2 | 2922.08 | 1 | 2922.08 | 241.76 | <0.0001 |
| X1 X3 | 461.67 | 1 | 461.67 | 38.2 | 0.0005 |
| X2 X3 | 13.21 | 1 | 13.21 | 1.09 | 0.3306 |
| Residual | 84.61 | 7 | 12.09 | ||
| Lack of Fit | 65.28 | 3 | 21.76 | 4.5 | 0.09 ** |
| Pure Error | 19.33 | 4 | 4.83 | ||
| Cor total | 14136.03 | 16 |
* Significant ** Not significant.