/* Reading in dental measurements */

DATA dental;
INFILE cards missover;
INPUT gender $ @;
 DO until (mm = .);
 INPUT mm @;
 IF mm ne . then OUTPUT;
 END;
lines;
girls 23 25.5 26 26.5 23.5 22.5 25 24 21.5 19.5 28 .
boys 31 26.5 27.5 27 26 28.5 26.5 25.5 26 31.5 25 28 29.5 26 30 25 .
run;

/* Wilcoxon Rank-Sum results given in section labeled */
/* "Wilcoxon Two-Sample Test"                         */

PROC NPAR1WAY DATA = dental;
CLASS gender;
EXACT wilcoxon;
VAR mm;
run;