N | Mean | Standard Deviation | |
Group 1 | 10 | 5.5 | 1.96 |
Group 2 | 10 | 6.9 | 2.28 |
Group 3 | 10 | 4.1 | 2.15 |
Source | df | SS | MS | F |
Between | 2 | 39.2 | 19.6 | 5.61 |
Within | 27 | 94.3 | 3.493 | |
Total | 29 | 133.5 |
The critical value of F (alpha = 0.05 and dfs of 2 and 27) is 3.35.
Therefore, the F-ratio is significant and at least of of the groups is significantly different from at least one other group.