. Author manuscript; available in PMC: 2015 May 26.

Published in final edited form as: Commun Stat Theory Methods. 2013 Jun 20;44(6):1130–1142. doi: 10.1080/03610926.2013.766341

Table 1.

Coverage probability and length of CI $({\hat{β}}_{1}^{*})$ : 500 replications; ϕ = 0.75, SOB is stratified ordinary bootstrap, SB is a standard bootstrap estimation, and β̂₁ is a robust estimation with unknown covariance structure

Methods	CI $({\hat{β}}_{1}^{*})$	Probability	Length
MBB1	(0.849, 1.168)	0.949	0.318
MBB2	(0.844, 1.163)	0.952	0.320
SOB	(0.805, 1.091)	0.768	0.286
SB	(0.804, 1.086)	0.747	0.282
β̂₁	(0.840, 1.169)	0.950	0.329