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pipwdcount
2011 Jan 30
3
medians in Wilcoxon disagree with median function
I am sure I am opening myself up to looking stupid, but I have two samples
with medians of 613.5 and 189 (difference in location of 424 compared to
the difference suggested from the wilcoxon of 291.5)
> wilcox.test(pipwtCount,pipwdCount, conf.int=TRUE, na.rm=TRUE)
Wilcoxon rank sum test
data: pipwtCount and pipwdCount
W = 822, p-value = 0.01227
alternative hypothesis: true location shift is not equal to 0
95 percent confidence interval:
58 639
sample estimates:
difference in location
291.5
The...