
	Kruskal-Wallis rank sum test

data:  ARRAY and categs
Kruskal-Wallis chi-squared = 68.55, df = 3, p-value = 8.725e-15

Multiple comparison test after Kruskal-Wallis 
p.value: 0.05 
Comparisons
                                               obs.dif critical.dif difference
joda-time-2.8-RandomMutantSampling           59.466667     23.69541       TRUE
joda-time-2.8-RandomOperatorSelection        46.800000     23.69541       TRUE
joda-time-2.8-SelectiveMutation              68.133333     23.69541       TRUE
RandomMutantSampling-RandomOperatorSelection 12.666667     23.69541      FALSE
RandomMutantSampling-SelectiveMutation        8.666667     23.69541      FALSE
RandomOperatorSelection-SelectiveMutation    21.333333     23.69541      FALSE
