(b)
| Source | df | SS | Adj MS | F | P | R 2 |
|---|---|---|---|---|---|---|
| Regression | 9 | 6.30943 | 0.70105 | 37.48 | 0.000 | 97.12 |
| Linear | 3 | 1.82418 | 0.60806 | 32.51 | 0.000 | |
| Square | 3 | 4.36800 | 1.45600 | 77.85 | 0.000 | |
| Interaction | 3 | 0.11725 | 0.03908 | 2.09 | 0.165 | |
| Residual error | 10 | 0.18702 | 0.01870 | |||
| Pure error | 5 | 0.00508 | 0.00102 | |||
| Total | 19 | 6.49645 |
df: degrees of freedom; SS: sum of squares; MS: mean sum of squares. F: Fisher's F value (calculated by dividing the MS owing to the model by that due to error); P: probability of incorrectly rejecting the null hypothesis when it is actually true.