Gp | Obs | Mean | SD | T-test DF | p-value |
1 | 30 | 156 | 3.9 |
|
|
2 | 30 | 113 | 3.07 |
|
|
total | 60 | 135 | 3.8 | 58 | <0.05 |
Difference |
| 43 | 5 |
|
|