Table 7.
ANOVA for full quadratic equation.
| Source | DF | ADJ SS | ADJ MS | F | P |
|---|---|---|---|---|---|
| Model | 9 | 44,159.3 | 4906.6 | 43.54 | 0.000 |
| LINEAR | 3 | 43,011.6 | 14,337.2 | 127.23 | 0.000 |
| A: Speed (m/min) | 1 | 464.0 | 464.6 | 4.12 | 0.098 |
| B: Feed (mm/tooth) | 1 | 42,291.4 | 42,294.4 | 375.30 | 0.000 |
| C: Hardness (HRC) | 1 | 256.1 | 256.1 | 2.27 | 0.192 |
| Square | 3 | 445.6 | 148.5 | 1.32 | 0.366 |
| Speed × Speed | 1 | 368.6 | 368.6 | 3.27 | 0.130 |
| Feed × Feed | 1 | 18.6 | 18.6 | 0.17 | 0.701 |
| Hardness × Hardness | 1 | 57.8 | 57.8 | 0.51 | 0.506 |
| 2-way Interaction | 3 | 702.2 | 234.1 | 2.08 | 0.222 |
| Speed × Feed | 1 | 7.1 | 7.1 | 0.06 | 0.812 |
| Speed × Hardness | 1 | 564.1 | 564.1 | 5.01 | 0.075 |
| Feed × Hardness | 1 | 131.0 | 131.0 | 1.16 | 0.330 |
| Error | 5 | 563.4 | 112.7 | ||
| Lack-of-Fit | 3 | 536.3 | 178.8 | 13.18 | 0.071 |
| Pure Error | 2 | 27.1 | 13.6 | ||
| Total | 14 | 44,722.8 |