DATA FROM M&M P.543 TABLE 8.2 TREATMENT IN C1 CONTROL IN C2 MTB > describe c1-c2 N MEAN MEDIAN TRMEAN STDEV SEMEAN C1 21 51.48 53.00 51.89 11.01 2.40 C2 23 41.52 42.00 40.95 17.15 3.58 MIN MAX Q1 Q3 C1 24.00 71.00 43.50 58.50 C2 10.00 85.00 28.00 54.00 MTB > dotplot c1-c2; SUBC> same. : . . : . : :..:: : . . -----+---------+---------+---------+---------+---------+-C1 . . . : . . . : .:. .. ..: .. . -----+---------+---------+---------+---------+---------+-C2 15 30 45 60 75 90 MTB > twosample c1 c2 TWOSAMPLE T FOR C1 VS C2 N MEAN STDEV SE MEAN C1 21 51.5 11.0 2.4 C2 23 41.5 17.1 3.6 95 PCT CI FOR MU C1 - MU C2: (1.2, 18.7) TTEST MU C1 = MU C2 (VS NE): T= 2.31 P=0.027 DF= 37 MTB > twosample 99 c1 c2 TWOSAMPLE T FOR C1 VS C2 N MEAN STDEV SE MEAN C1 21 51.5 11.0 2.4 C2 23 41.5 17.1 3.6 99 PCT CI FOR MU C1 - MU C2: (-1.7, 21.7) TTEST MU C1 = MU C2 (VS NE): T= 2.31 P=0.027 DF= 37 MTB > stack c1 c2 c3; SUBC> subscripts c4. MTB > print c3 c4 ROW C3 C4 1 24 1 2 43 1 3 58 1 4 71 1 5 43 1 deleted cases 20 43 1 21 57 1 22 42 2 23 43 2 24 55 2 deleted cases 43 28 2 44 48 2 MTB > describe c3; SUBC> by c4. C4 N MEAN MEDIAN TRMEAN STDEV SEMEAN C3 1 21 51.48 53.00 51.89 11.01 2.40 2 23 41.52 42.00 40.95 17.15 3.58 C4 MIN MAX Q1 Q3 C3 1 24.00 71.00 43.50 58.50 2 10.00 85.00 28.00 54.00 MTB > twot c3 c4 TWOSAMPLE T FOR C3 C4 N MEAN STDEV SE MEAN 1 21 51.5 11.0 2.4 2 23 41.5 17.1 3.6 95 PCT CI FOR MU 1 - MU 2: (1.2, 18.7) TTEST MU 1 = MU 2 (VS NE): T= 2.31 P=0.027 DF= 37