Table 3.

ANOVA table for potato starch films results—WVP, thickness, water content, and a_w.

	SS	df	MS	Fcalc	Ftab (10%)
WVP
Regression	11.58	3	3.86	5.27	3.07
Residue	5.13	7	0.73
Lack of Fit	4.89	5	0.98	8.52	9.29
Pure error	0.23	2	0.12
Total	16.71	10
Thickness
Regression	0.0013	3	0.00045	33.37	3.07
Residue	9.39 × 10−5	7	1.34 × 10−5
Lack of Fit	0.00009	5	1.75 × 10−5	5.41	9.29
Pure error	0.00001	2	3.23 × 10−6
Total	0.00144	10
Water content
Regression	306.58	2	153.29	39.03	3.11
Residue	31.42	8	3.93
Lack of Fit	25.67	6	4.23	1.49	9.33
Pure error	5.74	2	2.87
Total	337.995	10
aw
Regression	0.0173	2	0.0086564	28.14	3.11
Residue	0.0025	8	0.0003076
Lack of Fit	0.0022	6	0.000367	2.84	9.33
Pure error	0.0003	2	0.000129
Total	0.0198	10