| N | Mean ± SD | Lower Bound | Upper Bound | Minimum | Maximum |
Hummana | 20 | 5.54 ± 0.39 | 5.35 | 5.72 | 4.96 | 6.29 |
Biomil | 20 | 4.87 ± 0.71 | 4.54 | 5.21 | 4.07 | 6.65 |
Total | 40 | 5.21 ± 0.66 | 4.99 | 5.42 | 4.07 | 6.65 |