options ls=65 ps=45; run;
data dropout;
input group $ attended; /* E = Experimental, C = Control */
LINES;
E 11.1
E 12.2
E  9.4
E 11.7
C  9.6
C  9.2
C 10.3
C  9.7
;
PROC TTEST ;
 CLASS group;
VAR attended;
run;

PROC ANOVA ;
 CLASS group;
MODEL attended = group;
run;

PROC NPAR1WAY ;
 CLASS group;
VAR attended;
run;