Table 3
ANOVA for electrical conductivity of printed circuits.
| Source variance | Sum of squares | DoF | Mean square | F-value | P-Value |
|---|---|---|---|---|---|
| Model | 5440.75 | 9 | 604.52778 | 930.042735 | <0.0001 |
| A-Nozzle diameter | 595.125 | 1 | 595.125 | 915.5769231 | <0.0001 |
| B-Extrusion pressure | 300.125 | 1 | 300.125 | 461.7307692 | <0.0001 |
| C-Printing speed | 968 | 1 | 968 | 1489.230769 | <0.0001 |
| AB | 30.25 | 1 | 30.25 | 46.53846154 | 0.0010 |
| AC | 36 | 1 | 36 | 55.38461538 | 0.0007 |
| BC | 81 | 1 | 81 | 124.6153846 | 0.0001 |
| A2 | 3350.8269 | 1 | 3350.8269 | 5155.118343 | <0.0001 |
| B2 | 0.5192308 | 1 | 0.5192308 | 0.798816568 | 0.4124 |
| C2 | 9.75 | 1 | 9.75 | 15 | 0.0117 |
| Residual | 3.25 | 5 | 0.65 | ||
| Lack of fit | 1.25 | 3 | 0.4166667 | 0.416666667 | 0.7615 |
| Pure error | 2 | 2 | 1 | ||
| Cor. total | 5444 | 14 | |||
| R2 | 0.999403 | Adj. R2 | 0.998328 | AP | 113.5534 |
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