| Boxplot statistics | |||||
| Variable | lower whisker | lower hinge | median | upper hinge | upper whisker |
| Pre | 5.7 | 6.7 | 7 | 7.7 | 8.7 |
| Post | 2.8 | 4.5 | 5.3 | 5.7 | 6.7 |
| Boxplot Notches | |||
| Variable | lower bound | median | upper bound |
| Pre | 6.56178684498207 | 7 | 7.43821315501793 |
| Post | 4.77414421397848 | 5.3 | 5.82585578602152 |
