Table 5.
Analysis of variance linear model for Rq against processing parameters.
| Source | df | Sum of Squares | Mean Squares | F-Value | p-Value |
|---|---|---|---|---|---|
| Model | 4 | 12,792,135 | 3,198,034 | 2.31 | 0.082 |
| Linear | 3 | 8,473,030 | 2,824,343 | 2.04 | 0.13 |
| Mould Temperature | 1 | 7,381,443 | 7,381,443 | 5.34 | 0.028 |
| Injection Speed | 1 | 1,046,061 | 1,046,061 | 0.76 | 0.392 |
| Back Pressure | 1 | 45,527 | 45,527 | 0.03 | 0.857 |
| 2-Way Interactions | 1 | 4,319,105 | 4,319,105 | 3.13 | 0.088 |
| Injection Speed × Back Pressure | 1 | 4,319,105 | 4,319,105 | 3.13 | 0.088 |
| Residual | 28 | 38,689,194 | 1,381,757 | ||
| Curvature | 1 | 1523 | 1523 | 0 | 0.974 |
| Lack-of-Fit | 27 | 38,687,671 | 1,432,877 | ||
| Total | 32 | 51,481,329 |