Table 12 The average estimators, the mean square error, and the absolute average bias of different methods of estimations (2,3,3).
\((m_{1},m_{2})\) | MLE | LSE | WLSE | CVME | ADE | RTADE | PE | MPSE |
|---|---|---|---|---|---|---|---|---|
(20, 20) | ||||||||
\(\lambda \) | ||||||||
AE | 2.3294 | 2.0983 | 2.1612 | 2.3710 | 2.1320 | 2.1754 | 1.9844 | 1.8887 |
MSE | 0.5100 | 0.4354 | 0.4736 | 0.8326 | 0.3414 | 0.3888 | 0.2372 | 0.2076 |
AAB | 0.4878 | 0.4437 | 0.4503 | 0.5862 | 0.4142 | 0.4274 | 0.3687 | 0.3615 |
\(\xi \) | ||||||||
AE | 3.1482 | 2.9081 | 2.9787 | 3.1464 | 2.9481 | 3.0132 | 2.8051 | 2.6803 |
MSE | 0.2304 | 0.3140 | 0.2923 | 0.3675 | 0.2061 | 0.2540 | 0.2220 | 0.2570 |
AAB | 0.3680 | 0.4262 | 0.3995 | 0.4523 | 0.3632 | 0.3901 | 0.3883 | 0.4272 |
\(\varphi \) | ||||||||
AE | 3.4061 | 3.1646 | 3.2365 | 3.4680 | 3.1987 | 3.2745 | 3.0465 | 2.8884 |
MSE | 1.5825 | 1.2324 | 1.3175 | 2.0688 | 1.1999 | 1.3680 | 1.0278 | 0.7704 |
AAB | 0.8911 | 0.7973 | 0.8228 | 0.9998 | 0.8059 | 0.8313 | 0.7595 | 0.6927 |
(60, 60) | ||||||||
\(\lambda \) | ||||||||
AE | 2.0851 | 2.0356 | 2.0620 | 2.1116 | 2.0308 | 2.0435 | 1.9641 | 1.9098 |
MSE | 0.1015 | 0.1582 | 0.1636 | 0.1798 | 0.1017 | 0.1015 | 0.0835 | 0.0776 |
AAB | 0.2396 | 0.2750 | 0.2629 | 0.2951 | 0.2449 | 0.2423 | 0.2292 | 0.2266 |
\(\xi \) | ||||||||
AE | 3.0491 | 2.9817 | 3.0156 | 3.0625 | 2.9847 | 3.0048 | 2.0147 | 2.8364 |
MSE | 0.0654 | 0.1334 | 0.1171 | 0.1310 | 0.0713 | 0.0830 | 0.0724 | 0.0819 |
AAB | 0.2006 | 0.2561 | 0.2310 | 0.2593 | 0.2135 | 0.2286 | 0.2178 | 0.2368 |
\(\varphi \) | ||||||||
AE | 3.1168 | 3.0721 | 3.0982 | 3.1569 | 3.0666 | 3.0816 | 2.9985 | 2.9058 |
MSE | 0.4136 | 0.5020 | 0.4879 | 0.5822 | 0.4347 | 0.4279 | 0.4055 | 0.3153 |
AAB | 0.4887 | 0.5295 | 0.5203 | 0.5637 | 0.5065 | 0.4987 | 0.4951 | 0.4464 |
(100, 100) | ||||||||
\(\lambda \) | ||||||||
AE | 2.0458 | 2.0195 | 2.0357 | 2.0627 | 2.0138 | 2.0219 | 1.9686 | 1.9289 |
MSE | 0.0543 | 0.1032 | 0.0967 | 0.0986 | 0.0576 | 0.0574 | 0.0496 | 0.0476 |
AAB | 0.1815 | 0.2154 | 0.1998 | 0.2222 | 0.1883 | 0.1880 | 0.1783 | 0.1778 |
\(\xi \) | ||||||||
AE | 3.0344 | 2.9949 | 3.0175 | 3.0423 | 2.9947 | 3.0081 | 2.9461 | 2.8886 |
MSE | 0.0382 | 0.0921 | 0.0705 | 0.0798 | 0.0427 | 0.0503 | 0.0426 | 0.0463 |
AAB | 0.1542 | 0.1982 | 0.1737 | 0.1973 | 0.1645 | 0.1779 | 0.1665 | 0.1758 |
\(\varphi \) | ||||||||
AE | 3.0671 | 3.0411 | 3.0556 | 3.0870 | 3.0352 | 3.0457 | 2.9892 | 2.9254 |
MSE | 0.2351 | 0.3079 | 0.2790 | 0.3262 | 0.2596 | 0.2506 | 0.2493 | 0.1986 |
AAB | 0.3761 | 0.4228 | 0.4059 | 0.4361 | 0.3989 | 0.3894 | 0.3933 | 0.3558 |
(150, 150) | ||||||||
\(\lambda \) | ||||||||
AE | 2.0291 | 2.0079 | 2.0204 | 2.0388 | 2.0092 | 2.0143 | 1.9762 | 1.9441 |
MSE | 0.0350 | 0.0536 | 0.0417 | 0.0572 | 0.0392 | 0.0379 | 0.0344 | 0.0326 |
AAB | 0.1466 | 0.1754 | 0.1601 | 0.1802 | 0.1570 | 0.1539 | 0.1487 | 0.1467 |
\(\xi \) | ||||||||
AE | 3.0226 | 2.9907 | 3.0096 | 3.0248 | 2.9962 | 3.0057 | 2.9606 | 2.9153 |
MSE | 0.0244 | 0.0441 | 0.0298 | 0.0441 | 0.0282 | 0.0324 | 0.0280 | 0.0296 |
AAB | 0.1237 | 0.1552 | 0.1365 | 0.1563 | 0.1336 | 0.1424 | 0.1343 | 0.1397 |
\(\varphi \) | ||||||||
AE | 3.0470 | 3.0187 | 3.0355 | 3.0514 | 3.0222 | 3.0308 | 2.9898 | 2.9433 |
MSE | 0.1544 | 0.1967 | 0.1772 | 0.2063 | 0.1715 | 0.1651 | 0.1677 | 0.1369 |
AAB | 0.3086 | 0.3466 | 0.3306 | 0.3543 | 0.3269 | 0.3197 | 0.3250 | 0.2969 |
(200, 200) | ||||||||
\(\lambda \) | ||||||||
AE | 2.0217 | 2.0018 | 2.0130 | 2.0242 | 2.0041 | 2.0092 | 1.9790 | 1.9539 |
MSE | 0.0256 | 0.0407 | 0.0305 | 0.0412 | 0.0292 | 0.0281 | 0.0259 | 0.0245 |
AAB | 0.1261 | 0.1524 | 0.1374 | 0.1544 | 0.1355 | 0.1327 | 0.1288 | 0.1266 |
\(\xi \) | ||||||||
AE | 3.0197 | 2.9939 | 3.0096 | 3.0189 | 2.9988 | 3.0070 | 2.9715 | 2.9335 |
MSE | 0.0186 | 0.0330 | 0.0224 | 0.0319 | 0.0215 | 0.0247 | 0.0211 | 0.0218 |
AAB | 0.1080 | 0.1349 | 0.1185 | 0.1350 | 0.1167 | 0.1247 | 0.1166 | 0.1195 |
\(\varphi \) | ||||||||
AE | 3.0350 | 3.0194 | 3.0315 | 3.0435 | 3.0209 | 3.0263 | 2.9951 | 2.9522 |
MSE | 0.1103 | 0.1472 | 0.1305 | 0.1526 | 0.1266 | 0.1214 | 0.1241 | 0.1006 |
AAB | 0.2619 | 0.3003 | 0.2837 | 0.3049 | 0.2808 | 0.2745 | 0.2786 | 0.2542 |
(300, 300) | ||||||||
\(\lambda \) | ||||||||
AE | 2.0130 | 2.0012 | 2.0094 | 2.0170 | 2.0029 | 2.0049 | 1.9842 | 1.9640 |
MSE | 0.0172 | 0.0255 | 0.0204 | 0.0265 | 0.0198 | 0.0190 | 0.0177 | 0.0169 |
AAB | 0.1037 | 0.1237 | 0.1126 | 0.1253 | 0.1112 | 0.1089 | 0.1066 | 0.1052 |
\(\xi \) | ||||||||
AE | 3.0112 | 2.9940 | 3.0059 | 3.0114 | 2.9979 | 3.0021 | 2.9775 | 2.9483 |
MSE | 0.0118 | 0.0194 | 0.0144 | 0.0198 | 0.0140 | 0.0161 | 0.0136 | 0.0139 |
AAB | 0.0860 | 0.1081 | 0.0952 | 0.1086 | 0.0941 | 0.1012 | 0.0932 | 0.0952 |
\(\varphi \) | ||||||||
AE | 3.0261 | 3.0119 | 3.0226 | 3.0284 | 3.0149 | 3.0191 | 2.9955 | 2.9656 |
MSE | 0.0758 | 0.0974 | 0.0877 | 0.1002 | 0.0859 | 0.0831 | 0.0845 | 0.0708 |
AAB | 0.2171 | 0.2464 | 0.2337 | 0.2491 | 0.2320 | 0.2277 | 0.2311 | 0.2124 |