***************************************************************
* *
* Wilcoxon Test *
* *
* *
***************************************************************
insheet using http://hedwig.mgh.harvard.edu/biostatistics/sites/default/files/public/education/tmp_sample_data.csv
ranksum bmi, by(gender)
********************************** ANNOTATED RESULTS **********************************
Two-sample Wilcoxon rank-sum (Mann-Whitney) test
gender | obs rank sum expected
-------------+---------------------------------
0 | 16 471.5 488
1 | 44 1358.5 1342
-------------+---------------------------------
combined | 60 1830 1830
unadjusted variance 3578.67
adjustment for ties -2.29
----------
adjusted variance 3576.38
Ho: bmi(gender==0) = bmi(gender==1)
z = -0.276
Prob > |z| = 0.7826