
	Kruskal-Wallis rank sum test

data:  ARRAY and categs
Kruskal-Wallis chi-squared = 77.027, df = 3, p-value < 2.2e-16

Multiple comparison test after Kruskal-Wallis 
p.value: 0.05 
Comparisons
                                                obs.dif critical.dif difference
joda-time-2.8-RandomMutantSampling           51.7000000     23.69541       TRUE
joda-time-2.8-RandomOperatorSelection        51.8333333     23.69541       TRUE
joda-time-2.8-SelectiveMutation              76.4666667     23.69541       TRUE
RandomMutantSampling-RandomOperatorSelection  0.1333333     23.69541      FALSE
RandomMutantSampling-SelectiveMutation       24.7666667     23.69541       TRUE
RandomOperatorSelection-SelectiveMutation    24.6333333     23.69541       TRUE
