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Table 4 ANOVA for response surface quadratic model: analysis of variance table (partial sum of squares—Type III)

From: Optimization of photochemical decomposition acetamiprid pesticide from aqueous solutions and effluent toxicity assessment by Pseudomonas aeruginosa BCRC using response surface methodology

Source Sum of squares df Mean square F value p value Prob > F
Model 1581 14 112.9 175.85 <0.0001 Significant
A-pH 282.6 1 282.6 440.2 <0.0001
B-contact time 1.561 1 1.561 2.430 0.1398
C-Concentration of  acetamiprid 339.2 1 339.2 528.2 <0.0001
D-dose of N.P 236.0 1 236.0 367.5 <0.0001
AB 5.267 1 5.267 8.203 0.01183
AC 0.3025 1 0.3025 0.4711 0.5030
AD 0.009025 1 0.009025 0.01406 0.9072
BC 0.7056 1 0.7056 1.099 0.3111
BD 11.19 1 11.19 17.43 0.06001
CD 2.657 1 2.657 4.138 <0.0001
A2 540.5 1 540.5 841.8 <0.0001
B2 228.6 1 228.6 356.0 <0.0001
C2 22.30 1 22.30 34.73 <0.0001
D2 81.18 1 81.18 126.4 <0.0001
Residual 9.632 15 0.6421
Lack of fit 0.002383 10 0.0002383 0.0001238 1.0000 Not significant
Pure error 9.629 5 1.926
Cor total 1590 29