Table 5 Coefficients of the regression... | Emerald Publishing

Table 5

Coefficients of the regression model of the influence of the explanatory variables on the resistivity

Term	Coefficient	Standard error	t-value	p-value	Variance inflation factor
constant	4.7482	0.0828	57.33	0.000	–
$h_{l} / w_{s}$	0.605	0.115	5.25	0.000	8.41
w_s	0.214	0.149	1.44	0.152	14.01
$h_{l} / w_{s} \cdot w_{s}$	0.5259	0.0464	11.35	0.000	1.17
${(h_{l} / w_{s})}^{2}$	0.8868	0.0448	19.78	0.000	1.13
${w_{s}}^{2}$	0.3508	0.0557	6.30	0.000	1.60
$h_{l} / w_{s} \cdot {w_{s}}^{2}$	−0.2449	0.0541	−4.53	0.000	2.56
${(h_{l} / w_{s})}^{3}$	−0.4210	0.0480	−8.78	0.000	6.32
$w_{s}^{3}$	−0.3866	0.0721	−5.36	0.000	12.49
${(h_{l} / w_{s})}^{2} \cdot w_{s}$	−0.3205	0.0508	−6.31	0.000	2.41

Term	Coefficient	Standard error	t-value	p-value	Variance inflation factor
constant	4.7482	0.0828	57.33	0.000	–
$h_{l} / w_{s}$	0.605	0.115	5.25	0.000	8.41
w_s	0.214	0.149	1.44	0.152	14.01
$h_{l} / w_{s} \cdot w_{s}$	0.5259	0.0464	11.35	0.000	1.17
${(h_{l} / w_{s})}^{2}$	0.8868	0.0448	19.78	0.000	1.13
${w_{s}}^{2}$	0.3508	0.0557	6.30	0.000	1.60
$h_{l} / w_{s} \cdot {w_{s}}^{2}$	−0.2449	0.0541	−4.53	0.000	2.56
${(h_{l} / w_{s})}^{3}$	−0.4210	0.0480	−8.78	0.000	6.32
$w_{s}^{3}$	−0.3866	0.0721	−5.36	0.000	12.49
${(h_{l} / w_{s})}^{2} \cdot w_{s}$	−0.3205	0.0508	−6.31	0.000	2.41

Note(s):

h_l = layer height; w_s = strand width; h_l/w_s = normalized layer height

Source(s): Authors' own work