Generalized Chain Regression-cum-Chain Ratio Estimator for Population Mean under Stratified Extreme-cum-Median Ranked Set Sampling

Table 5

PRE of proposed estimator and existing estimators with respect to SRS for r = 3 and .

Estimator	Normal	Uniform	Gamma	Weibull	Normal	Uniform	Gamma	Weibull
	m = 10				m = 15
	202.83	211.154	192.196	207.142	225.175	229.263	222.275	219.735
	217.816	242.185	212.478	230.758	258.765	231.681	241.851	233.852
	222.951	265.234	253.382	222.751	269.344	262.197	257.385	257.968
	285.154	296.858	276.987	261.254	235.374	248.254	269.861	295.186
	315.256	299.186	291.142	262.645	285.295	270.783	296.196	299.85
	345.813	321.745	331.867	332.927	361.978	359.785	362.535	372.672