data fw06p05; title 'Chapter 6, Exercise 5, DIFFERENT TREATMENT STRUCTURES';
input  TRT    UNITS  Y ;
*** comment : units is for part c*** ;
cards;
  1       1      11.6
  1       1      10.0
  1       1      10.5
  1       1      10.6
  1       1      10.7
  2       0       8.5
  2       0       9.7
  2       0       6.7
  2       0       7.5
  2       0       6.7
  3       4      14.5
  3       4      14.5
  3       4      13.3
  3       4      14.8
  3       4      14.4
  4       2      12.3
  4       2      12.9
  4       2      11.4
  4       2      12.4
  4       2      11.6
  5       3      13.9
  5       3      16.1
  5       3      14.3
  5       3      13.7
  5       3      14.9