Open Access
Table 4
Analysis of variance table for surface roughness.
| Source | Sum of squares | DoF | Mean square | F-value | p-value | ||
|---|---|---|---|---|---|---|---|
| Model | 1.93 | 6 | 0.32 | 4.70 | 0.0131 | Sign. | |
| A | 0.65 | 1 | 0.65 | 9.56 | 0.0102 | Sign. | |
| B | 0.52 | 1 | 0.52 | 7.62 | 0.0185 | Sign. | |
| C | 0.72 | 1 | 0.72 | 10.54 | 0.0078 | Sign. | |
| AB | 0.020 | 1 | 0.020 | 0.29 | 0.5993 | ||
| AC | 0.013 | 1 | 0.013 | 0.20 | 0.6672 | ||
| BC | 8.33e-04 | 1 | 8.33e-04 | 0.012 | 0.9141 | ||
| Residual | 0.75 | 11 | 0.068 | ||||
| Cor Total | 2.68 | 17 | |||||
| Std. Dev. | 0.26 | R-squared | 0.7195 | ||||
| Mean | 5.87 | Adj. R-squared | 0.5665 | ||||
| CV % | 4.46 | Pred. R-squared | 0.3302 | ||||
| Adeq. precision | 7.872 | ||||||
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