Estimation of Generalized Gompertz Distribution Parameters under Ranked-Set Sampling

Table 5

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		0.822	1.409	0.951	1.013	0.970	1.752	0.949	1.201	0.908	3.555	0.949	3.253
	RSS	2	0.845	1.289	0.951	0.992	0.976	1.601	0.949	1.098	0.918	3.063	0.951	3.384
		5	0.840	1.037	0.950	0.775	0.978	1.377	0.949	1.037	0.910	1.695	0.950	1.647
	SRS		0.880	0.831	0.949	0.706	0.994	0.994	0.951	0.902	0.935	1.216	0.951	1.165
	RSS	2	0.889	0.765	0.950	0.663	0.992	0.930	0.951	0.855	0.930	1.094	0.949	1.054
		5	0.891	0.652	0.951	0.589	0.986	0.820	0.951	0.793	0.931	0.887	0.949	0.877
	SRS		0.922	0.473	0.950	0.521	0.968	0.533	0.949	0.596	0.950	0.596	0.948	0.657
	RSS	2	0.922	0.441	0.951	0.493	0.965	0.508	0.952	0.595	0.946	0.556	0.949	0.626
		5	0.927	0.387	0.950	0.445	0.961	0.460	0.952	0.556	0.949	0.483	0.950	0.551
	SRS		0.928	0.323	0.947	0.395	0.959	0.357	0.951	0.463	0.951	0.392	0.949	0.466
	RSS	2	0.936	0.304	0.949	0.366	0.961	0.341	0.951	0.418	0.950	0.372	0.950	0.440
		5	0.934	0.268	0.950	0.332	0.956	0.313	0.948	0.410	0.953	0.328	0.950	0.384