Source of variation | DF | Adj sum of square | Adj mean square | F value | P value summary | |
---|---|---|---|---|---|---|
Value | Significant | |||||
Model | 6 | 1945.25 | 324.21 | 59.44 | 0.000 | Model significant |
Linear | 2 | 37.51 | 18.76 | 3.44 | 0.091 | |
Citric acid | 1 | 2.83 | 2.83 | 0.52 | 0.495 | |
Effersoda | 1 | 34.68 | 34.68 | 6.36 | 0.040 | |
Square | 2 | 1842.35 | 921.17 | 168.89 | 0.000 | |
Citric acid (mg)*citric acid (mg) | 1 | 507.71 | 507.71 | 93.08 | 0.000 | |
Effersoda*effersoda | 1 | 1456.01 | 1456.01 | 266.95 | 0.000 | |
2-way interaction | 1 | 42.25 | 42.25 | 7.75 | 0.027 | |
Citric acid (mg)*effersoda | 1 | 42.25 | 42.25 | 7.75 | 0.027 | |
Lack-of-fit | 3 | 25.51 | 8.50 | 2.69 | 0.182 | Lack-of-fit not significant |
Model Summary | ||||||
S | R-sq | R-sq (adj) | R-sq (pred) | |||
2.33544 | 98.08% | 96.43% | 84.95% |