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Table 3

Analysis of variance (ANOVA) for drinking water and wastewater

Source of variationSSDfMSFFcrit
Drinking water 
Between groups 36,739,526 17 2,161,149 32.68 1.82 
Within groups 3,571,452 54 66,138   
Wastewater 
Between groups 134,312,814 17 7,900,754 18.25 1.82 
Within groups 23,377,023 54 432,907.8   
Source of variationSSDfMSFFcrit
Drinking water 
Between groups 36,739,526 17 2,161,149 32.68 1.82 
Within groups 3,571,452 54 66,138   
Wastewater 
Between groups 134,312,814 17 7,900,754 18.25 1.82 
Within groups 23,377,023 54 432,907.8   

The null hypothesis and alternative hypothesis were formulated and evaluated using ANOVA.

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