| Boxplot statistics | |||||
| Variable | lower whisker | lower hinge | median | upper hinge | upper whisker |
| Smokers | 2 | 3 | 4 | 5 | 7 |
| nosmokers | 1 | 3 | 3.5 | 5 | 7 |
| Boxplot Notches | |||
| Variable | lower bound | median | upper bound |
| Smokers | 3.29340251911007 | 4 | 4.70659748088993 |
| nosmokers | 2.79340251911007 | 3.5 | 4.20659748088993 |
