Estimation of Generalized Gompertz Distribution Parameters under Ranked-Set Sampling

Table 6

Coverage probability (CP) and half length (HL) of the MLE and Bayes estimates under RSS and SRS for different sample sizes and different set sizes when , , and .

MLE		Bayes		MLE		Bayes		MLE		Bayes
	Sampling		CP	HL	CP	HL	CP	HL	CP	HL	CP	HL	CP	HL
	SRS		0.818	2.297	0.976	2.410	0.979	3.368	0.963	1.759	0.931	0.680	0.961	0.939
	RSS	2	0.839	2.083	0.971	2.087	0.984	3.010	0.953	1.629	0.934	0.600	0.967	0.771
		5	0.833	1.642	0.969	1.643	0.983	2.524	0.949	1.463	0.928	0.443	0.959	0.557
	SRS		0.874	1.438	0.950	1.311	0.986	1.743	0.950	1.079	0.950	0.371	0.950	0.409
	RSS	2	0.885	1.314	0.950	1.179	0.982	1.622	0.950	1.044	0.946	0.337	0.950	0.340
		5	0.886	1.095	0.950	0.949	0.976	1.420	0.950	0.951	0.945	0.277	0.950	0.268
	SRS		0.920	0.856	0.949	0.792	0.970	0.902	0.952	0.705	0.957	0.210	0.949	0.209
	RSS	2	0.925	0.787	0.951	0.730	0.969	0.858	0.949	0.691	0.955	0.194	0.951	0.191
		5	0.934	0.674	0.951	0.635	0.969	0.778	0.951	0.656	0.955	0.164	0.950	0.162
	SRS		0.929	0.593	0.949	0.618	0.961	0.596	0.952	0.573	0.959	0.144	0.949	0.148
	RSS	2	0.943	0.551	0.949	0.583	0.963	0.571	0.951	0.560	0.960	0.133	0.950	0.141
		5	0.947	0.471	0.950	0.501	0.958	0.523	0.950	0.538	0.955	0.114	0.951	0.120