TABLE 3.
Analysis of variance of the experimental results of the BBD in extraction of CPP
| Variables | Sum of squares | df | Mean square | F‐value | p‐Value |
|---|---|---|---|---|---|
| Model | 0.004401932 | 9 | 0.000489104 | 59.08067581 | <.0001 |
| X1 | 3.125E‐06 | 1 | 3.125E‐06 | 0.377480587 | .5584 |
| X2 | 3.2E‐05 | 1 | 3.2E‐05 | 3.865401208 | .0900 |
| X3 | 0.000136125 | 1 | 0.000136125 | 16.44305436 | .0048 |
| X1X2 | 9.025E‐05 | 1 | 9.025E‐05 | 10.90163934 | .0131 |
| X1X3 | 0.0001 | 1 | 0.0001 | 12.07937877 | .0103 |
| X2X3 | 2.25E‐06 | 1 | 2.25E‐06 | 0.271786022 | .6182 |
| X1 2 | 0.000637011 | 1 | 0.000637011 | 76.94691431 | <.0001 |
| X2 2 | 0.002748642 | 1 | 0.002748642 | 332.0188911 | <.0001 |
| X3 2 | 0.000326063 | 1 | 0.000326063 | 39.38640389 | .0004 |
| Residual | 5.795E‐05 | 7 | 8.27857E‐06 | ||
| Lack of fit | 6.75E‐06 | 3 | 2.25E‐06 | 0.17578125 | .9076 |
| Pure error | 5.12E‐05 | 4 | 0.0000128 | ||
| R 2 = .9870 | R 2 Adj = .9703 | R 2 Pred = .9578 | CV = 0.53% | Adeq Precision = 19.927 | |