options nodate pagesize=54 linesize=80;

/* Read in the input file   */

data ex0402;
* infile '../../../data/biostat/ex0402.dat';
infile 'C:\biostat\data\ex0402.dat';
input group bioavail;
run;


/* Obtain independent sample t-test and 95% Confidence Interval for
difference between healthy and pre-transplant patients wrt bioavailability  */

proc ttest;
class group;
var bioavail;
run;


quit;