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)
>
>
After a rather frustrating search, with it only explained in one of the
books I found. It seems that the difference in medians for the Wilcoxon is
calculated by looking at pair wise differences between the observations from
each sample, at least in Minitab it is.
This would potentially explain the discrepancy I am getting.
Graham
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