| Boxplot statistics | |||||
| Variable | lower whisker | lower hinge | median | upper hinge | upper whisker |
| SMKHC | 2 | 3 | 4 | 5 | 7 |
| SMKMC | 1 | 3 | 3.5 | 5 | 7 |
| NSHK | 5 | 7 | 8 | 9 | 11 |
| NSMK | 1 | 3 | 4 | 4.5 | 6 |
| Boxplot Notches | |||
| Variable | lower bound | median | upper bound |
| SMKHC | 3.29 | 4 | 4.71 |
| SMKMC | 2.79 | 3.5 | 4.21 |
| NSHK | 7.29 | 8 | 8.71 |
| NSMK | 3.47 | 4 | 4.53 |
| Boxplot Means | |||
| Variable | trimmed mean | unbiased SD | |
| SMKHC | 4.15 | 1.46 | |
| SMKMC | 3.8 | 1.64 | |
| NSHK | 8.1 | 1.55 | |
| NSMK | 3.65 | 1.35 | |
