Data Hospital;
input gender  days; 
lines;
1 13   
1 15    
1 9    
1 18  
1 11   
1 20   
1 24  
1 22  
1 25
2 11
2 14
2 10
2 8 
2 16 
2 9 
2 17
2 21
RUN;

proc format;
value gender 1='male'
             2='female';
run;
 
proc ttest;
class gender;
var days;
title 'two sample t-test for the difference between the two population means';
run;

proc npar1way wilcoxon;
class gender;
var days;
title 'Rank-sum test for the difference between the two population locations';
run;