Estimation Results of Bootstrap
statistic	Q1	Estimate	Q3	S.D.	IQR
mean	20.387	20.642	20.835	0.28956	0.44753
median	21	21	21	0.50153	0
midrange	17.5	17.5	18.5	0.95948	1
mode	20	22	22	1.3261	2
mode k.dens	20.728	21.538	22.061	1.0196	1.333