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Table 4 ANOVA for response surface quadratic model

From: A statistical approach on optimization of exopolymeric substance production by Halomonas sp. S19 and its emulsification activity

Source Sum of squares Df Mean square F value p value Prob > F
Model 9521.10 9 1057.90 63.22 <0.0001
A-sea salt 6862.20 1 6862.20 410.08 <0.0001
B-pH 510.19 1 510.19 30.49 0.0009
C-temp 180.50 1 180.50 10.79 0.0134
AB 306.25 1 306.25 18.30 0.0037
AC 37.08 1 37.08 2.22 0.1802
BC 128.53 1 128.53 7.68 0.0276
A2 350.59 1 350.59 20.95 0.0026
B2 213.75 1 213.75 12.77 0.0090
C2 366.31 1 366.31 21.89 0.0023
Lack of fit 117.14 3 39.05   
Std. dev. 4.09   R-squared 0.9878
Mean 272.47 Adj R-squared 0.9722
C.V. % 1.50 Pred R-squared 0.8002
PRESS 1925.58 Adeq precision 26.350