Research Article
Inference on a New Lifetime Distribution under Progressive Type II Censoring for a Parallel-Series Structure
Table 5
LS and WLS estimates of
, , and
with their MSEs, RABs, MMSE, and MRAB based on
simulations. Population parameter values are
, , and
.
| | | | LSE | WLSE | | MSE | RAB | MMSE | | MSE | RAB | MMSE | | MSE | RAB | MRAB | | MSE | RAB | MRAB | | | CS | | MSE | RAB | | | MSE | RAB | |
| 25 | 15 | 1 | 4.2018 | 3.8547 | 0.3684 | 2.1198 | 4.2775 | 3.2795 | 0.3373 | 1.8863 | 4.1913 | 2.1909 | 0.2254 | 0.2934 | 4.1459 | 2.0644 | 0.2153 | 0.2790 | 1.5048 | 0.3138 | 0.2864 | | 1.5483 | 0.3149 | 0.2843 | | 2 | 4.2342 | 4.3133 | 0.3810 | 2.3266 | 4.3473 | 3.6601 | 0.3512 | 2.0175 | 4.2218 | 2.3387 | 0.2282 | 0.2956 | 4.2696 | 2.1016 | 0.2138 | 0.2793 | 1.4854 | 0.3277 | 0.2775 | | 1.4957 | 0.2910 | 0.2728 | | 3 | 4.2297 | 3.8954 | 0.3672 | 2.1470 | 4.2814 | 3.3869 | 0.3391 | 1.8355 | 4.1701 | 2.1944 | 0.2239 | 0.2955 | 4.0525 | 1.8140 | 0.2084 | 0.2760 | 1.5232 | 0.3511 | 0.2955 | | 1.5678 | 0.3057 | 0.2804 | | 4 | 4.2309 | 4.1101 | 0.3788 | 2.2403 | 4.3207 | 3.5594 | 0.3468 | 2.0196 | 4.1892 | 2.2634 | 0.2261 | 0.3004 | 4.2193 | 2.1714 | 0.2175 | 0.2850 | 1.5150 | 0.3473 | 0.2965 | | 1.5332 | 0.3279 | 0.2909 | | 20 | 1 | 4.2268 | 3.5707 | 0.3461 | 2.0226 | 4.3054 | 3.0713 | 0.3216 | 1.7824 | 4.2142 | 2.2062 | 0.2190 | 0.2762 | 4.2661 | 2.0199 | 0.2065 | 0.2610 | 1.4944 | 0.2908 | 0.2635 | | 1.4944 | 0.2559 | 0.2548 | | 2 | 4.1998 | 3.5906 | 0.3535 | 1.9432 | 4.2734 | 3.0718 | 0.3275 | 1.7414 | 4.1557 | 1.9528 | 0.2072 | 0.2734 | 4.2575 | 1.8905 | 0.2015 | 0.2618 | 1.4975 | 0.2864 | 0.2594 | | 1.4821 | 0.2619 | 0.2564 | | 3 | 4.1763 | 3.5149 | 0.3488 | 1.9955 | 4.2382 | 2.9586 | 0.3211 | 1.6911 | 4.1589 | 2.1746 | 0.2205 | 0.2785 | 4.1836 | 1.8553 | 0.2036 | 0.2606 | 1.503 | 0.2970 | 0.2661 | | 1.5058 | 0.2595 | 0.2573 | | 4 | 4.2168 | 3.6427 | 0.3497 | 2.0747 | 4.2818 | 3.0952 | 0.3228 | 1.7780 | 4.2207 | 2.3000 | 0.2227 | 0.2780 | 4.2651 | 1.9773 | 0.2046 | 0.2619 | 1.4914 | 0.2814 | 0.2617 | | 1.4896 | 0.2617 | 0.2584 | | 25 | — | 4.1975 | 3.2876 | 0.3299 | 1.8774 | 4.2474 | 2.8569 | 0.3113 | 1.6443 | 4.1717 | 2.0857 | 0.2076 | 0.2609 | 4.2778 | 1.8419 | 0.2000 | 0.2517 | 1.4959 | 0.2589 | 0.2453 | | 1.4671 | 0.2340 | 0.2439 | |
| 50 | 30 | 1 | 4.1671 | 2.6825 | 0.3021 | 1.5410 | 4.2294 | 2.1876 | 0.2712 | 1.2432 | 4.1100 | 1.6989 | 0.1938 | 0.2473 | 4.0173 | 1.3254 | 0.1771 | 0.2282 | 1.5239 | 0.2416 | 0.2460 | | 1.5694 | 0.2165 | 0.2364 | | 2 | 4.1593 | 2.8978 | 0.3113 | 1.6367 | 4.2344 | 2.3133 | 0.2796 | 1.3704 | 4.1470 | 1.7885 | 0.1963 | 0.2460 | 4.2121 | 1.5797 | 0.1868 | 0.2327 | 1.4955 | 0.2239 | 0.2304 | | 1.4941 | 0.2181 | 0.2318 | | 3 | 4.1583 | 2.8172 | 0.3105 | 1.5909 | 4.1947 | 2.0972 | 0.2699 | 1.2279 | 4.0803 | 1.7078 | 0.1909 | 0.2501 | 4.0203 | 1.3665 | 0.1819 | 0.2304 | 1.5267 | 0.2477 | 0.2490 | | 1.5576 | 0.2199 | 0.2394 | | 4 | 4.1557 | 2.8545 | 0.3093 | 1.6398 | 4.2266 | 2.2891 | 0.2791 | 1.3457 | 4.0962 | 1.8139 | 0.1979 | 0.2501 | 4.1001 | 1.5258 | 0.1832 | 0.2340 | 1.5214 | 0.2511 | 0.2430 | | 1.5369 | 0.2222 | 0.2397 | | 40 | 1 | 4.1554 | 2.2927 | 0.2774 | 1.4242 | 4.2138 | 1.8709 | 0.2555 | 1.1424 | 4.1277 | 1.7714 | 0.1888 | 0.2281 | 4.1709 | 1.3666 | 0.1750 | 0.2160 | 1.5167 | 0.2086 | 0.2179 | | 1.5102 | 0.1897 | 0.2176 | | 2 | 4.1382 | 2.3300 | 0.2819 | 1.4075 | 4.2014 | 1.9425 | 0.2584 | 1.1516 | 4.1258 | 1.6930 | 0.1900 | 0.2302 | 4.1836 | 1.3258 | 0.1755 | 0.2170 | 1.5049 | 0.1995 | 0.2187 | | 1.4946 | 0.1866 | 0.2170 | | 3 | 4.1329 | 2.3980 | 0.2853 | 1.4030 | 4.1742 | 1.9651 | 0.2573 | 1.1994 | 4.1038 | 1.6115 | 0.1876 | 0.2320 | 4.1378 | 1.4478 | 0.1790 | 0.2182 | 1.5131 | 0.1996 | 0.2231 | | 1.5123 | 0.1854 | 0.2183 | | 4 | 4.1497 | 2.4247 | 0.2868 | 1.4009 | 4.2040 | 2.0314 | 0.2632 | 1.1723 | 4.1246 | 1.5883 | 0.1843 | 0.2293 | 4.1606 | 1.2879 | 0.1724 | 0.2192 | 1.5057 | 0.1898 | 0.2168 | | 1.5079 | 0.1977 | 0.2221 | | 50 | — | 4.1168 | 2.0442 | 0.2584 | 1.2361 | 4.1589 | 1.7465 | 0.2426 | 1.0439 | 4.1196 | 1.4875 | 0.1748 | 0.2120 | 4.1824 | 1.2104 | 0.1684 | 0.2058 | 1.5028 | 0.1766 | 0.2028 | | 1.4867 | 0.1749 | 0.2065 | | 100 | 60 | 1 | 4.0515 | 1.3811 | 0.2218 | 0.9072 | 4.0952 | 1.0753 | 0.1972 | 0.7242 | 3.9961 | 1.1830 | 0.1620 | 0.1931 | 4.0126 | 0.9539 | 0.1533 | 0.1810 | 1.5458 | 0.1576 | 0.1955 | | 1.5493 | 0.1433 | 0.1924 | | 2 | 4.1471 | 1.8059 | 0.2461 | 1.0887 | 4.1839 | 1.4089 | 0.222 | 0.8912 | 4.0761 | 1.3043 | 0.1672 | 0.2027 | 4.1414 | 1.1082 | 0.1614 | 0.1935 | 1.5257 | 0.1560 | 0.1947 | | 1.5114 | 0.1564 | 0.1971 | | 3 | 4.0942 | 1.4625 | 0.2289 | 0.9976 | 4.1236 | 1.1084 | 0.1993 | 0.7193 | 4.0590 | 1.3701 | 0.1735 | 0.2002 | 3.9928 | 0.9058 | 0.1521 | 0.1811 | 1.5323 | 0.1601 | 0.1982 | | 1.5562 | 0.1437 | 0.1920 | | 4 | 4.1208 | 1.6778 | 0.2411 | 1.0733 | 4.1595 | 1.3026 | 0.215 | 0.8431 | 4.0733 | 1.3761 | 0.1722 | 0.2042 | 4.0636 | 1.0716 | 0.1610 | 0.1912 | 1.5266 | 0.1660 | 0.1993 | | 1.5375 | 0.1551 | 0.1977 | | 80 | 1 | 4.0775 | 1.2080 | 0.2047 | 0.7785 | 4.0888 | 0.9761 | 0.1851 | 0.6866 | 4.0369 | 0.9978 | 0.1484 | 0.1764 | 4.1004 | 0.9465 | 0.1530 | 0.1739 | 1.5239 | 0.1296 | 0.1760 | | 1.5078 | 0.1373 | 0.1835 | | 2 | 4.0657 | 1.2917 | 0.2141 | 0.8152 | 4.0865 | 1.0466 | 0.1953 | 0.6878 | 4.0455 | 1.0233 | 0.1498 | 0.1798 | 4.1164 | 0.8923 | 0.1494 | 0.1741 | 1.5185 | 0.1307 | 0.1754 | | 1.4952 | 0.1244 | 0.1775 | | 3 | 4.0845 | 1.2750 | 0.2112 | 0.8451 | 4.095 | 0.9718 | 0.1875 | 0.7049 | 4.0575 | 1.1227 | 0.1579 | 0.1838 | 4.0669 | 1.0079 | 0.1535 | 0.1750 | 1.5244 | 0.1376 | 0.1824 | | 1.5266 | 0.1350 | 0.1841 | | 4 | 4.0828 | 1.2696 | 0.2117 | 0.8306 | 4.1005 | 1.0218 | 0.1916 | 0.7248 | 4.0519 | 1.0819 | 0.1560 | 0.1830 | 4.0914 | 1.0142 | 0.1553 | 0.1775 | 1.5246 | 0.1402 | 0.1812 | | 1.5169 | 0.1384 | 0.1855 | | 100 | — | 4.0629 | 1.0169 | 0.1909 | 0.7348 | 4.0905 | 0.8740 | 0.1783 | 0.6133 | 4.0753 | 1.0702 | 0.1473 | 0.1678 | 4.1021 | 0.8487 | 0.1444 | 0.1644 | 1.5173 | 0.1173 | 0.1653 | | 1.5078 | 0.1172 | 0.1705 | |
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