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Table 1

Multiple comparison table for water quality parameters

Parameter(J) dayMean difference (I-J)
Homogenous subsets
(I) day
051015203512345
Coliform (p = 0.00) 2.85 4.1 9.6 17.05 66.10* 2.2     
−2.85 1.25 6.75 14.2 63.25* 5.05     
10 −4.1 −1.25 5.5 12.95 62.00* 6.3     
15 −9.6 −6.75 −5.5 7.45 56.50* 11.8     
20 −17.1 −14.2 −12.95 −7.45 49.05* 19.25     
35 −66.10* −63.25* −62.00* −56.50* −49.05*  68.3    
E. coli (0.00) 1.25 2.5 3.65* 4.65* 6.00* 0.9     
−1.25 1.25 2.4 3.40* 4.75* 2.15 2.15    
10 −2.5 −1.25 1.15 2.15 3.50* 3.4 3.4 3.4   
15 −3.65* −2.4 −1.15 2.35  4.55 4.55 4.55  
20 −4.65* −3.40* −2.15 −1 1.35   5.55 5.55  
35 −6.00* −4.75* −3.50* −2.35 −1.35    6.9  
Enterococci (p = 0.008) 1.1 3.1 9.05 27.25 113.5*     
−1.1 7.95 26.15 112.4* 1.1     
10 −3.1 −2 5.95 24.15 110.4* 3.1     
15 −9.05 −7.95 −5.95 18.2 104.4* 9.05     
20 −27.3 −26.15 −24.15 −18.2 86.2 27.25 27.25    
35 −113.5* −112.4* −110.4* −104.4* −86.2  113.5    
HPC (p = 0.00) 8.25 13.75* 18.10* 25.95* 4.6     
−4 4.25 9.75 14.10* 21.95* 8.6 8.6    
10 −8.25 −4.25 5.5 9.85 17.70* 12.85 12.85 12.85   
15 −13.75* −9.75 −5.5 4.35 12.20*  18.35 18.4   
20 −18.10* −14.10* −9.85 −4.35 7.85   22.7 22.7  
35 −25.95* −21.95* −17.70* −12.20* −7.85    30.6  
Parameter(J) dayMean difference (I-J)
Homogenous subsets
(I) day
051015203512345
Coliform (p = 0.00) 2.85 4.1 9.6 17.05 66.10* 2.2     
−2.85 1.25 6.75 14.2 63.25* 5.05     
10 −4.1 −1.25 5.5 12.95 62.00* 6.3     
15 −9.6 −6.75 −5.5 7.45 56.50* 11.8     
20 −17.1 −14.2 −12.95 −7.45 49.05* 19.25     
35 −66.10* −63.25* −62.00* −56.50* −49.05*  68.3    
E. coli (0.00) 1.25 2.5 3.65* 4.65* 6.00* 0.9     
−1.25 1.25 2.4 3.40* 4.75* 2.15 2.15    
10 −2.5 −1.25 1.15 2.15 3.50* 3.4 3.4 3.4   
15 −3.65* −2.4 −1.15 2.35  4.55 4.55 4.55  
20 −4.65* −3.40* −2.15 −1 1.35   5.55 5.55  
35 −6.00* −4.75* −3.50* −2.35 −1.35    6.9  
Enterococci (p = 0.008) 1.1 3.1 9.05 27.25 113.5*     
−1.1 7.95 26.15 112.4* 1.1     
10 −3.1 −2 5.95 24.15 110.4* 3.1     
15 −9.05 −7.95 −5.95 18.2 104.4* 9.05     
20 −27.3 −26.15 −24.15 −18.2 86.2 27.25 27.25    
35 −113.5* −112.4* −110.4* −104.4* −86.2  113.5    
HPC (p = 0.00) 8.25 13.75* 18.10* 25.95* 4.6     
−4 4.25 9.75 14.10* 21.95* 8.6 8.6    
10 −8.25 −4.25 5.5 9.85 17.70* 12.85 12.85 12.85   
15 −13.75* −9.75 −5.5 4.35 12.20*  18.35 18.4   
20 −18.10* −14.10* −9.85 −4.35 7.85   22.7 22.7  
35 −25.95* −21.95* −17.70* −12.20* −7.85    30.6  

*The mean difference is significant at 95% confidence level.

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