| Boxplot statistics | |||||
| Variable | lower whisker | lower hinge | median | upper hinge | upper whisker |
| smokers | 2 | 3 | 4 | 5 | 6 |
| nosmokers | 3 | 4 | 6 | 7.5 | 9 |
| Boxplot Notches | |||
| Variable | lower bound | median | upper bound |
| smokers | 3.4 | 4 | 4.6 |
| nosmokers | 4.95 | 6 | 7.05 |
| Boxplot Means | |||
| Variable | trimmed mean | unbiased SD | |
| smokers | 3.85 | 0.96 | |
| nosmokers | 5.8 | 1.89 | |
