Boxplot statistics
Variable	lower whisker	lower hinge	median	upper hinge	upper whisker
Knowledge	79	88	92	98	106
Maths	77	84.5	91	95.5	105
Writtenlanuage	81	86	90	95	105
Reading	73	84	90	96	106
Skills	77	84	90	94	101

Boxplot Notches
Variable	lower bound	median	upper bound
Knowledge	90.27	92	93.73
Maths	89.09	91	92.91
Writtenlanuage	88.44	90	91.56
Reading	87.92	90	92.08
Skills	88.27	90	91.73

Boxplot Means
Variable	trimmed mean	unbiased SD
Knowledge	92.69	6.89
Maths	90.07	7.65
Writtenlanuage	91.01	6.57
Reading	90.33	8.25
Skills	89.46	6.4