| Boxplot statistics | |||||
| Variable | lower whisker | lower hinge | median | upper hinge | upper whisker |
| SMKHOT | 2 | 3 | 4 | 5 | 7 |
| SMKMILD | 1 | 3 | 3.5 | 5 | 7 |
| NONSMKHOT | 5 | 7 | 8 | 9 | 11 |
| NONSMKMILD | 1 | 3 | 4 | 4.5 | 6 |
| Boxplot Notches | |||
| Variable | lower bound | median | upper bound |
| SMKHOT | 3.293 | 4 | 4.707 |
| SMKMILD | 2.793 | 3.5 | 4.207 |
| NONSMKHOT | 7.293 | 8 | 8.707 |
| NONSMKMILD | 3.47 | 4 | 4.53 |
| Boxplot Means | |||
| Variable | trimmed mean | unbiased SD | |
| SMKHOT | 4.15 | 1.461 | |
| SMKMILD | 3.8 | 1.642 | |
| NONSMKHOT | 8.1 | 1.553 | |
| NONSMKMILD | 3.65 | 1.348 | |
