Table 7 Significance test of % elongation
From: Microstructural and mechanical studies of feedstock material in continuous extrusion process
Term | Co-efficient | t | p |
|---|---|---|---|
Constant | 46.3793 | 65.424 | 0.000 |
Wheel velocity (X1) | − 0.2500 | − 0.507 | 0.628 |
Product diameter (X2) | 1.0000 | 2.029 | 0.082 |
Wheel velocity × wheel velocity \( \left({X}_1^2\right) \) | − 5.8200 | − 16.318 | 0.000 |
Product diameter × product diameter \( \left({X}_2^2\right) \) | − 3.2575 | − 9.134 | 0.000 |
Wheel velocity × product diameter (X1X2) | 3.0000 | 3.514 | 0.010 |