* SAS code for mutation data from Table 4.3;
 options linesize=70;

 data mut43;
 input group y @@;
 V = sqrt(y) + sqrt(y+1);    *F-T transform;
 cards;
 0 2  0 2  0 0  0 1  0 2  0 1  0 0  0 2  0 1  0 0 
 160 2  160 1  160 3  160 1  160 4  160 4 
 160 3  160 3  160 1  160 2

 proc ttest;
  class group;
  var V;

 run;