Research Article

Estimation of Generalized Gompertz Distribution Parameters under Ranked-Set Sampling

Table 3

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

SRS0.4871.1480.4631.4980.4021.795−0.5361.5090.1450.211−0.6380.812
RSS20.4210.809−0.3161.0060.3231.3270.4661.3650.1270.1470.3140.148
50.30.459−0.2830.5840.261.240.4311.1980.0810.0570.5430.468

SRS0.3630.4520.2010.4730.0050.454−0.1580.4530.0790.046−0.5180.331
RSS20.320.372−0.1950.382−0.0050.4230.0980.4450.0710.0360.3930.21
50.2530.257−0.1880.242−0.0350.3280.0770.3270.0550.0220.3120.211

SRS0.280.2170.1610.218−0.1520.16−0.0670.1710.0490.015−0.2620.169
RSS20.240.184−0.0920.205−0.1330.1640.0440.1610.0440.0120.2520.148
50.2070.14−0.0820.178−0.1390.1410.0250.150.0380.0080.2450.139

SRS0.2230.1440.0730.168−0.1560.112−0.0250.1170.0360.007−0.180.118
RSS20.1980.122−0.0470.126−0.1420.1030.0220.1050.0330.0060.1710.106
50.1590.089−0.0450.086−0.1260.0930.0180.0950.0290.0050.0780.084