Research Article

Estimation of Generalized Gompertz Distribution Parameters under Ranked-Set Sampling

Table 1

Bias and MSE of the MLE and Bayes estimates under RSS and SRS for different sample sizes and different set sizes when , , and .

MLEBayesMLEBayesMLEBayes
SamplingBiasMSEBiasMSEBiasMSEBiasMSEBiasMSEBiasMSE

SRS0.1400.3920.4050.3920.4031.0150.4900.5872.7451.0252.556
RSS20.1180.3350.3710.3130.3370.7780.3630.4671.2860.8361.644
50.0660.2240.3120.2290.2980.6380.3450.2270.520

SRS0.0680.1730.3250.2370.1750.2980.2490.1860.446
RSS20.0550.1490.3050.2090.1560.2580.2200.1510.410
50.0300.1090.2630.1660.1340.2020.1870.0920.332

SRS0.0230.0600.2210.1280.0640.0790.1040.0590.233
RSS20.0170.0510.2010.1120.0590.0720.0980.0450.217
50.0110.0400.1680.0880.0500.0590.0820.0300.182

SRS0.0070.0270.1180.0630.0340.0350.0540.0240.118
RSS20.0100.0240.1080.0540.0280.0310.0480.0220.111
50.0040.0190.0800.0390.0260.0270.0390.0150.087