MTB > Stack (C1 ) (c2) (c3) (c4);
SUBC>   Subscripts c5.
MTB > print c4 c5

Data Display


 Row   C4   C5

   1    5    1
   2    4    1
   3    6    1
   4    2    1
   5    2    1
   6    2    1
   7    6    1
   8    4    1
   9    3    1
  10    5    1
  11    4    2
  12    5    2
  13    3    2
  14    6    2
  15    6    2
  16    3    2
  17    3    2
  18    4    2
  19    4    2
  20    2    2
  21    5    3
  22    4    3
  23    4    3
  24    7    3
  25    8    3
  26    7    3
  27    6    3
  28    4    3
  29    4    3
  30    7    3

MTB > oneway c4 c5;
SUBC> tukey.

One-Way Analysis of Variance

Analysis of Variance on C4      
Source     DF        SS        MS        F        p
C5          2     18.20      9.10     4.01    0.030
Error      27     61.30      2.27
Total      29     79.50
                                   Individual 95% CIs For Mean
                                   Based on Pooled StDev
 Level      N      Mean     StDev  -+---------+---------+---------+-----
     1     10     3.900     1.595  (---------*---------) 
     2     10     4.000     1.333   (---------*---------) 
     3     10     5.600     1.578                   (---------*---------) 
                                   -+---------+---------+---------+-----
Pooled StDev =    1.507           3.0       4.0       5.0       6.0

Tukey's pairwise comparisons

    Family error rate = 0.0500
Individual error rate = 0.0196

Critical value = 3.51

Intervals for (column level mean) - (row level mean)

               1         2

     2    -1.772
           1.572

     3    -3.372    -3.272
          -0.028     0.072