Table 3.

Model statistical summary.

Response	Models	R 2	Adju. R2	Pred. R2	Adequate precision	Sequential p value	Remarks
EE	Linear	0.1185	–0.0850	–0.4132	–	.6370
	2 FI	0.1203	–0.4075	–1.7238	29.2609	.9992
	Quadratic	0.9926	0.9831	0.9047	–	<.0001	Suggested
	Cubic	0.9984	0.9936		–	.0803	Aliased
ND	Linear	0.1147	–0.0895	–0.6691	–	.6497
	2 FI	0.2199	–0.2482	–2.2435	–	.7235
	Quadratic	0.9910	0.9794	0.8607	28.200	<.0001	Suggested
	Cubic	0.9997	0.9987		–	.0025