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ANOVA of the reduced quadratic model for extraction yields of parthenolide.
| Dependent Variable | Source | Sum of Squares | Degree of Freedom | Mean Square | F-Value | p-Value | Remarks |
|---|---|---|---|---|---|---|---|
| R | Model | 0.0372 | 9 | 0.0041 | 681.78 | <0.0001 | Significant |
| Residual | 0.0001 | 7 | 6.064 × 10−6 | − | − | ||
| Lack of fit | 9.597 × 10−6 | 3 | 3.199 × 10−6 | 0.3895 | 0.7677 | Insignificant | |
| Pure error | 0.0001 | 4 | 8.212 × 10−6 | − | − |
