Table 12 Regression coefficients for variables of AP of sock.
Term | Effect | Coefficient | SE coefficient | t-value | p-value |
|---|---|---|---|---|---|
Constant | Â | 381.60 | 7.98 | 47.81 | 0.000 |
Blend ratio | 180.40 | 90.20 | 9.77 | 9.23 | 0.000 |
Material type | |||||
 Cotton | 66.8 | 33.4 | 16.0 | 2.09 | 0.091 |
 Modal | − 15.2 | − 7.6 | 16.0 | − 0.48 | 0.654 |
 Polyester | 235.5 | 117.7 | 16.0 | 7.38 | 0.001 |
 Polypropylene | − 169.9 | − 84.9 | 16.0 | − 5.32 | 0.003 |
Blend ratio * material type | |||||
 Cotton | − 40.4 | − 20.2 | 19.5 | − 1.03 | 0.349 |
 Modal | − 102.4 | − 51.2 | 19.5 | − 2.62 | 0.047 |
 Polyester | 95.6 | 47.8 | 19.5 | 2.45 | 0.058 |
 Polypropylene | 117.6 | 58.8 | 19.5 | 3.01 | 0.030 |
