[Table/Fig-4]:

Comparison of mean differential colony counts in the three groups at pre-rinsing and post rinsing stage by ANOVA.

Source of variation		Sum of squares	Degree of freedom	Mean sum of squares	F-value	p
Pre rinse	Between Groups	17.200	2	8.600	0.003	0.997
	Within Groups	106510.800	42	2535.971
	Total	106528.000	44
Post rinse	Between Groups	20748.133	2	10374.067	9.237	<0.001*
	Within Groups	47171.867	42	1123.140
	Total	67920.000	44

^*Statistically significant