Table 6.
ANOVA test results for SR.
| Source | “Sum of Squares” | “Degree of Freedom” | “Mean-Square” | “F-Value” | “Prob > F” | |
|---|---|---|---|---|---|---|
| Model | 5.59 | 8 | 0.6990 | 24.24 | <0.0001 | Significant |
| A-Pulse-on Time | 2.17 | 1 | 2.17 | 75.33 | <0.0001 | |
| B-Pulse-off Time | 0.4593 | 1 | 0.4593 | 15.93 | 0.0007 | |
| C-Spark Gap- Voltage | 2.23 | 1 | 2.23 | 77.43 | <0.0001 | |
| D-Wire Feed-Rate | 0.0096 | 1 | 0.0096 | 0.3329 | 0.5701 | |
| AB | 0.1089 | 1 | 0.1089 | 3.78 | 0.0655 | |
| AC | 0.1225 | 1 | 0.1225 | 4.25 | 0.0519 | |
| B2 | 0.2618 | 1 | 0.2618 | 9.08 | 0.0066 | |
| D2 | 0.1722 | 1 | 0.1722 | 5.97 | 0.0234 | |
| Residual | 0.6055 | 21 | 0.0288 | |||
| Lack-of-fit | 0.5404 | 16 | 0.0338 | 2.59 | 0.1487 | Not-significant |
| Pure-error | 0.0651 | 5 | 0.0130 | |||
| Cor-total | 6.20 | 29 | ||||
| Standard-deviation | 0.1698 | R2 | 0.9023 | |||
| Mean | 2.11 | Adj. R2 | 0.8651 | |||
| CV% | 8.04 | Pred. R2 | 0.7897 | |||
| Adeq. Precision | 16.7976 | |||||