Research Article

Estimation of Generalized Gompertz Distribution Parameters under Ranked-Set Sampling

Table 4

Bias and MSE of the Bayes estimates obtained using DE-MCMC and Lindely methods under RSS and SRS for different sample sizes and different set sizes when , , and .

MLEBayesMLEBayesMLEBayes
SamplingBiasMSEBiasMSEBiasMSEBiasMSEBiasMSEBiasMSE

SRS0.4050.392−0.1380.3680.1010.490.3650.4561.0252.556−0.1692.093
RSS20.3710.313−0.1460.3670.0460.3630.3460.3340.8361.644−0.1691.89
50.3120.229−0.130.3060.0280.3450.3070.3280.521.177−0.1380.85

SRS0.3250.237−0.0880.266−0.0550.2490.2270.2530.4460.877−0.110.89
RSS20.3050.209−0.0770.205−0.0740.220.01960.2170.410.644−0.0840.683
50.2630.166−0.0810.147−0.0810.1870.01810.1840.3320.391−0.080.371

SRS0.2210.128−0.0380.138−0.1080.1040.10.1060.2330.213−0.0420.251
RSS20.2010.112−0.0320.135−0.1040.0980.0890.1020.2170.18−0.0310.155
50.1680.088−0.0310.086−0.0920.0820.0770.0810.1820.133−0.0320.139

SRS0.1180.063−0.0190.067−0.0590.0540.0520.0530.1180.082−0.0190.095
RSS20.1080.054−0.0150.052−0.0570.0480.0430.0490.1110.074−0.0190.079
50.080.039−0.0170.035−0.0410.0390.0420.0390.0860.053−0.0150.053