| Sample size | α = 0.01 | α = 0.05 | α = 0.10 |
| 25 | 10.61 | 7.24 | 5.91 |
| 50 | 9.31 | 6.73 | 5.61 |
| 100 | 8.73 | 6.49 | 5.47 |
| 250 | 8.43 | 6.34 | 5.39 |
| 500 | 8.34 | 6.30 | 5.36 |
| >500 | 8.27 | 6.25 | 5.34 |