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

Table 2

Parametric values for variables X and Z.

Strata	Parameter	Normal		Uniform		Gamma		Weibull
		X	Z	X	Z	X	Z	X	Z
1		500	600	0	5	4	12	5	10
		480	475	9	20	3	7	1.5	4.5
2		1500	2000	4	8	8	14	10	18
		500	775	16	15	5	6	4.5	9.5