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Table 3 ANOVA for the quadratic regression model in BBD

From: Extraction, purification, characterization and antioxidant activities of polysaccharides from Ramaria botrytis (Pers.) Ricken

Source Sum of squares DF Mean squares F value p value
Model 27.31 9 3.03 30.20 <0.0001
X 1 0.60 1 0.60 5.97 0.0446
X 2 20.35 1 20.35 202.53 <0.0001
X 3 0.34 1 0.34 3.39 0.1083
X 1 X 2 0.022 1 0.022 0.22 0.6505
X 1 X 3 0.06 1 0.06 0.60 0.4649
X 2 X 3 0.09 1 0.09 0.90 0.3755
X 21 2.81 1 2.81 27.95 0.0011
X 22 0.07 1 0.07 0.70 0.4304
X 23 2.54 1 2.54 25.28 0.0015
Residual 0.70 7 0.10   
Lack of fit 0.38 3 0.13 1.54 0.3336
Pure error 0.33 4 0.081   
Cor total 28.01 16    
R2 0.9749   Adj-R2 0.9626