Mixture Design Approach on the Physical Properties of Lignin-Resorcinol-Formaldehyde Xerogels

Table 6

Major statistical properties of variance analysis for the significance of regression models.

Property	Regression model	df	Sum of Squares	Mean Square	-test	value		Adj.
	Cubic	9	326224	36247.2	46.37	0.0001	98.58	96.46
	Cubic	9	0.18402	0.000216586	94.40	0.0000	99.30	98.25
Rs	Especial Cubic	6	475.452	79.242	57.82	0.0000	97.47	95.78
Porosity	Cubic	9	0.096156	0.010684	64.65	0.0000	98.98	97.45