Welcome to European Tribune. It's gone a bit quiet around here these days, but it's still going.
Now let's apply the same nonparametric test to the data with the machine counts flipped. The result is quite different:

        Wilcoxon rank sum test

data:  (Clinton..d - Obama..d)[machines] and (Obama..d - Clinton..d)[!machines]
W = 234, p-value = 0.7086
alternative hypothesis: true mu is not equal to 0
95 percent confidence interval:
 -0.10751315  0.07106908
sample estimates:
difference in location

This means that one cannot reject the hypothesis that the hand counts and the reversed machine counts have the same distribution.

We have met the enemy, and he is us — Pogo
by Carrie (migeru at eurotrib dot com) on Thu Jan 17th, 2008 at 11:46:27 AM EST
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