Table 2.

Swelling index output data, with a summary of the ANOVA.

Source	DF *	Sum of Squares	Mean Square	F-Value	p-Value
Regression	4	141,566	35,391.6	19.55	0.000
PVA	1	12,599	12,599.1	6.96	0.014
Starch	1	17,042	17,041.6	9.41	0.005
Citric Acid	1	44,250	44,249.7	24.44	0.000
Glycerol	1	67,676	67,676.0	37.38	0.000
Error	25	45,256	1810.3
Lack-of-Fit	20	44,481	2224.1	14.34	0.004
Pure Error	5	775	155.1
Total	29	186,823

* (Degree of Freedom)