Table 2.

Analysis of variance ANOVA for the response surface quadratic model (a = 0.05).

Source	Sum of Squares	DF	Mean Square	F	p-Value
Model	389.68	9	43.30	239.77	<0.0001
P	37.28	1	37.28	206.44	<0.0001
R	57.42	1	57.42	318.00	<0.0001
C	6.43	1	6.43	35.62	0.0001
PR	0.020	1	0.020	0.11	0.7462
PC	1.44	1	1.44	8.00	0.0179
RC	2.42	1	2.42	13.40	0.0044
P2	126.70	1	126.70	701.61	<0.0001
R2	185.09	1	185.09	1024.96	<0.0001
C2	8.61	1	8.61	47.69	<0.0001
Residual	1.81	10	0.18
Lack of Fit	1.07	5	0.21	1.44	0.3493
Pure Error	0.74	5	0.15
Core Total	391.49	19
R2	0.9954
Adjusted R2	0.9912
Predicted R2	0.9753
Adequate precision	45.211
CV	3.66