Table 1.

ANOVA for the fitted secondary order curve model for total biflavonoid content.

Source	Sum of Squares	df	F Value	p Value	R 2	R2 (Adj)	Significant
Model	67.92	9	180.95	<0.0001	0.9957	0.9902	significant
X1	4.06	1	97.38	0.0015
X2	0.73	1	17.41	0.0042
X3	16.79	1	402.60	<0.0001
X1X2	2.250 × 10−4	1	5.395 × 10−3	0.9435
X1X3	1.58	1	37.76	0.0005
X2X3	0.023	1	0.54	0.4865
X12	13.04	1	312.54	<0.0001
X22	12.49	1	299.36	<0.0001
X32	14.52	1	348.14	<0.0001
Residual	0.29	7
Lack of Fit	0.21	3	3.37	0.1355			not significant
Pure Error	0.083	4
Cor Total	68.21	16