The data represent the results of an exercise therapy study of three
weight-lifting programs: CONT is control, RI is a program in which the number
of repetitions are increased, and WI is a program in which the weight is increased.
data weights;
input Program $ s1-s7;
datalines;
CONT 85 85 86 85 87 86 87
CONT 80 79 79 78 78 79 78
CONT 78 77 77 77 76 76 77
CONT 84 84 85 84 83 84 85
CONT 80 81 80 80 79 79 80
RI 79 79 79 80 80 78 80
RI 83 83 85 85 86 87 87
RI 81 83 82 82 83 83 82
RI 81 81 81 82 82 83 81
RI 80 81 82 82 82 84 86
WI 84 85 84 83 83 83 84
WI 74 75 75 76 75 76 76
WI 83 84 82 81 83 83 82
WI 86 87 87 87 87 87 86
WI 82 83 84 85 84 85 86
;