An Optimisation Method of Construction for Warping Copper Plates and Engines Using Complete Block Designs with Some Special Types of Graphs

Table 7

Coefficients of response.

Term	Coef	Coef	T-value	value	VIF
Constant	16.111	0.294	54.80	0.001	1.33
Days
1	1.556	0.416	3.74	0.065	1.33
2	1.222	0.416	2.94	0.099	1.33
Engines
1	−0.444	0.416	−1.07	0.397	1.33
2	0.556	0.416	1.34	0.313	1.33
Burners
1	−1.778	0.416	−4.28	0.051	1.33
2	−0.778	0.416	−1.87	0.202	1.33