[R] Non-parametric test for location with two unpaired sets of data measured on ordinal scale.

[John Sorkin]

Please forgive a stats question.

I have to sets of data (unpaired) measured on an ordinal scale. I want to test to see if the two sets are different (i.e. do they have the same location):

set1: 1,3,2,2,4,3,3,2,2 
set:   4,4,4,3,3,5,4,4

What is the most appropriate non-parametric test to test location?

Thanks,
John  

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