Research Article

Exponentiated Gamma Distribution: Different Methods of Estimations

Table 4

Bias estimates and MSEs of are presented, when is unknown.

Method = 0.25 = 0.5 = 1 = 2 = 2.5

10MLE0.23192 − 0.375061.513220.306590.17913
0.414510.140672.289840.094000.12062
MME1.491080.220060.225790.181510.15722
3.414540.218050.140190.166860.38909
PCE0.48838 − 0.37506 − 0.63758 − 0.77034 − 0.58675
0.238510.140670.406510.593430.34428
LSE1.961231.937651.195350.678810.38439
3.846423.754481.428850.460780.14776
WLSE1.933821.774600.957890.868390.36372
3.739653.149210.917550.754100.13230
LME1.243690.58045 − 0.868910.25729 − 0.27276
1.546760.336920.755000.066200.07440

20MLE1.12958− 0.785770.096480.06996 − 0.32552
0.98810 0.832600.073990.052560.31230
MME − 0.21298− 0.029780.092690.083620.06518
15.796901.265160.099560.073700.06565
PCE0.965170.41578 − 0.25434 − 0.20545 − 0.13402
2.644590.515770.271450.307450.19009
LSE1.085010.132100.128850.23836 − 0.05068
0.120890.017520.273720.442100.14692
WLSE0.957720.056300.078820.16095 − 0.09438
0.050370.003330.218170.583810.20759
LME0.26872− 0.063480.057700.040020.00806
0.098520.094930.082660.058490.05390

50MLE0.949810.088820.036550.02594 − 0.20388
0.136130.053720.024250.018490.26018
MME0.17219− 0.037110.032350.02871 − 0.00462
9.218140.314410.033340.026690.02245
PCE1.597040.64277 − 0.16087 − 0.11791 − 0.15752
1.498960.447990.250110.057860.09803
LSE1.010340.122680.067340.26566− 0.15567
0.070850.015070.059650.094250.04834
WLSE0.944170.048550.037410.19030 − 0.24839
0.041040.002410.089500.181410.10215
LME0.75545 − 0.089300.016730.01864 − 0.00924
0.056480.041310.026190.019990.01877

100MLE − 0.242060.04165 − 0.108070.0124840.00873
0.058590.001730.011680.007680.00833
MME 0.165520.02524 − 0.074160.047440.06259
0.055460.000640.021020.018070.01740
PCE − 0.51381 − 0.27116 − 0.10042 − 0.07722 − 0.07335
0.264010.073530.045820.025650.02310
LSE 0.158720.14976 − 0.091930.082860.06580
0.064450.022430.008450.006870.00433
WLSE0.784220.34511 − 0.102040.065910.06105
0.032590.11910 0.010410.004340.00373
LME − 0.017980.13656 0.016220.111120.02734
0.000320.01865 0.000260.012350.00075

The first entry is the simulated bias.
The second entry is simulated MSE.