Table 7 Numerical values of the KAPLL distribution for θ = (0.5, 1.5, 0.5, 1.3, 1.2)T.

From: A flexible extension of the log-logistic model with diverse failure rate shapes and applications

n

Est.

Param.

MLE

LSE

WLSE

CRVME

MPSE

PCE

ADE

RADE

50

|BIAS|

\(\hat{\alpha }\)

3.93312 \(^{\{7\}}\)

1.01714 \(^{\{4\}}\)

0.83242 \(^{\{1\}}\)

1.04594 \(^{\{5\}}\)

0.86109 \(^{\{2\}}\)

9.57785 \(^{\{8\}}\)

1.00265 \(^{\{3\}}\)

1.47971 \(^{\{6\}}\)

\(\hat{\beta }\)

1.05376 \(^{\{6\}}\)

0.99863 \(^{\{5\}}\)

0.80202 \(^{\{2\}}\)

0.96798 \(^{\{3\}}\)

1.08363 \(^{\{8\}}\)

0.73295 \(^{\{1\}}\)

1.06518 \(^{\{7\}}\)

0.99262 \(^{\{4\}}\)

\(\hat{\lambda }\)

2.29374 \(^{\{7\}}\)

0.79990 \(^{\{3\}}\)

0.45629 \(^{\{1\}}\)

0.87379 \(^{\{4\}}\)

0.89547 \(^{\{5\}}\)

5.78546 \(^{\{8\}}\)

0.55845 \(^{\{2\}}\)

1.10547 \(^{\{6\}}\)

\({\hat{a}}\)

5.74078 \(^{\{8\}}\)

1.22598 \(^{\{2\}}\)

1.35092 \(^{\{4\}}\)

1.33741 \(^{\{3\}}\)

1.80774 \(^{\{7\}}\)

1.01636 \(^{\{1\}}\)

1.67183 \(^{\{6\}}\)

1.39469 \(^{\{5\}}\)

\({\hat{b}}\)

9.03582 \(^{\{7\}}\)

2.13614 \(^{\{3\}}\)

1.49371 \(^{\{1\}}\)

2.36181 \(^{\{5\}}\)

2.10756 \(^{\{2\}}\)

9.88831 \(^{\{8\}}\)

2.18338 \(^{\{4\}}\)

2.91530 \(^{\{6\}}\)

MSE

\(\hat{\alpha }\)

455.05529 \(^{\{7\}}\)

8.94097 \(^{\{2\}}\)

16.38925 \(^{\{4\}}\)

8.02337 \(^{\{1\}}\)

20.95470 \(^{\{5\}}\)

1474.37252 \(^{\{8\}}\)

10.68622 \(^{\{3\}}\)

28.19877 \(^{\{6\}}\)

\(\hat{\beta }\)

2.08534 \(^{\{6\}}\)

1.71142 \(^{\{4\}}\)

1.21994 \(^{\{2\}}\)

1.68813 \(^{\{3\}}\)

2.97266 \(^{\{8\}}\)

0.90974 \(^{\{1\}}\)

2.10723 \(^{\{7\}}\)

1.82623 \(^{\{5\}}\)

\(\hat{\lambda }\)

361.13516 \(^{\{7\}}\)

4.96876 \(^{\{2\}}\)

7.60626 \(^{\{4\}}\)

6.46392 \(^{\{3\}}\)

45.53682 \(^{\{6\}}\)

393.36590 \(^{\{8\}}\)

3.55248 \(^{\{1\}}\)

14.78641 \(^{\{5\}}\)

\({\hat{a}}\)

83.78229 \(^{\{8\}}\)

2.81482 \(^{\{2\}}\)

4.69174 \(^{\{1\}}\)

3.39328 \(^{\{3\}}\)

12.59144 \(^{\{6\}}\)

2.49430 \(^{\{7\}}\)

6.07295 \(^{\{4\}}\)

3.87087 \(^{\{5\}}\)

\({\hat{b}}\)

1081.38525 \(^{\{7\}}\)

20.79202 \(^{\{4\}}\)

12.22512 \(^{\{1\}}\)

25.87663 \(^{\{5\}}\)

77.44083 \(^{\{2\}}\)

871.60132 \(^{\{8\}}\)

32.42482 \(^{\{3\}}\)

73.77608 \(^{\{6\}}\)

MRE

\(\hat{\alpha }\)

7.86624 \(^{\{7\}}\)

2.03427 \(^{\{4\}}\)

1.66485 \(^{\{1\}}\)

2.09187 \(^{\{5\}}\)

1.72217 \(^{\{2\}}\)

19.15571 \(^{\{8\}}\)

2.00531 \(^{\{3\}}\)

2.95943 \(^{\{6\}}\)

\(\hat{\beta }\)

0.70251 \(^{\{6\}}\)

0.66575 \(^{\{5\}}\)

0.53468 \(^{\{2\}}\)

0.64532 \(^{\{3\}}\)

0.72242 \(^{\{8\}}\)

0.48863 \(^{\{1\}}\)

0.71012 \(^{\{7\}}\)

0.66174 \(^{\{4\}}\)

\(\hat{\lambda }\)

4.58748 \(^{\{7\}}\)

1.59980 \(^{\{3\}}\)

0.91258 \(^{\{1\}}\)

1.74757 \(^{\{4\}}\)

1.79095 \(^{\{5\}}\)

11.57092 \(^{\{8\}}\)

1.11690 \(^{\{2\}}\)

2.21094 \(^{\{6\}}\)

\({\hat{a}}\)

4.41598 \(^{\{8\}}\)

0.94306 \(^{\{2\}}\)

1.03917 \(^{\{4\}}\)

1.02878 \(^{\{3\}}\)

1.39057 \(^{\{7\}}\)

0.78181 \(^{\{1\}}\)

1.28602 \(^{\{6\}}\)

1.07284 \(^{\{5\}}\)

\({\hat{b}}\)

7.52985 \(^{\{7\}}\)

1.78011 \(^{\{3\}}\)

1.24476 \(^{\{1\}}\)

1.96818 \(^{\{5\}}\)

1.75630 \(^{\{2\}}\)

8.24026 \(^{\{8\}}\)

1.81948 \(^{\{4\}}\)

2.42942 \(^{\{6\}}\)

\(\sum {Ranks}\)

106 \(^{\{8\}}\)

46 \(^{\{2\}}\)

34 \(^{\{1\}}\)

53 \(^{\{3\}}\)

80 \(^{\{7\}}\)

77 \(^{\{5\}}\)

65 \(^{\{4\}}\)

79 \(^{\{6\}}\)

100

|BIAS|

\(\hat{\alpha }\)

1.24153 \(^{\{7\}}\)

0.50907 \(^{\{3\}}\)

0.36319 \(^{\{1\}}\)

0.59168 \(^{\{5\}}\)

0.42588 \(^{\{2\}}\)

3.56225 \(^{\{8\}}\)

0.55255 \(^{\{4\}}\)

0.59552 \(^{\{6\}}\)

\(\hat{\beta }\)

0.80638 \(^{\{6\}}\)

0.89233 \(^{\{8\}}\)

0.56662 \(^{\{1\}}\)

0.85182 \(^{\{7\}}\)

0.70281 \(^{\{3\}}\)

0.67294 \(^{\{2\}}\)

0.77663 \(^{\{4\}}\)

0.79657 \(^{\{5\}}\)

\(\hat{\lambda }\)

0.65956 \(^{\{7\}}\)

0.37923 \(^{\{3\}}\)

0.22310 \(^{\{1\}}\)

0.43336 \(^{\{6\}}\)

0.38522 \(^{\{4\}}\)

4.31181 \(^{\{8\}}\)

0.31835 \(^{\{2\}}\)

0.42725 \(^{\{5\}}\)

\({\hat{a}}\)

3.32806 \(^{\{8\}}\)

1.20256 \(^{\{4\}}\)

0.95967 \(^{\{1\}}\)

1.32971 \(^{\{7\}}\)

1.16938 \(^{\{3\}}\)

1.08864 \(^{\{2\}}\)

1.28651 \(^{\{6\}}\)

1.24808 \(^{\{5\}}\)

\({\hat{b}}\)

3.66364 \(^{\{7\}}\)

1.40726 \(^{\{5\}}\)

0.98523 \(^{\{1\}}\)

1.61606 \(^{\{6\}}\)

1.22079 \(^{\{2\}}\)

6.32767 \(^{\{8\}}\)

1.28787 \(^{\{3\}}\)

1.37300 \(^{\{4\}}\)

MSE

\(\hat{\alpha }\)

16.68662 \(^{\{7\}}\)

1.23050 \(^{\{4\}}\)

0.53242 \(^{\{1\}}\)

3.04661 \(^{\{6\}}\)

0.77863 \(^{\{2\}}\)

217.14918 \(^{\{8\}}\)

1.13992 \(^{\{3\}}\)

2.36896 \(^{\{5\}}\)

\(\hat{\beta }\)

1.15750 \(^{\{4\}}\)

1.32129 \(^{\{8\}}\)

0.63375 \(^{\{1\}}\)

1.19286 \(^{\{6\}}\)

1.29367 \(^{\{7\}}\)

0.69095 \(^{\{2\}}\)

1.01849 \(^{\{3\}}\)

1.16068 \(^{\{5\}}\)

\(\hat{\lambda }\)

25.40878 \(^{\{7\}}\)

0.89816 \(^{\{4\}}\)

0.09431 \(^{\{1\}}\)

1.36695 \(^{\{6\}}\)

0.84141 \(^{\{3\}}\)

1234.52459 \(^{\{8\}}\)

0.21901 \(^{\{2\}}\)

0.95744 \(^{\{5\}}\)

\({\hat{a}}\)

30.35583 \(^{\{8\}}\)

2.65161 \(^{\{2\}}\)

2.61829 \(^{\{1\}}\)

3.31920 \(^{\{5\}}\)

6.05689 \(^{\{7\}}\)

2.96839 \(^{\{3\}}\)

3.64692 \(^{\{6\}}\)

3.06725 \(^{\{4\}}\)

\({\hat{b}}\)

84.47239 \(^{\{7\}}\)

6.46549 \(^{\{3\}}\)

3.18586 \(^{\{1\}}\)

10.41527 \(^{\{6\}}\)

9.08248 \(^{\{5\}}\)

2590.68728 \(^{\{8\}}\)

4.39740 \(^{\{2\}}\)

7.84346 \(^{\{4\}}\)

MRE

\(\hat{\alpha }\)

2.48307 \(^{\{7\}}\)

1.01815 \(^{\{3\}}\)

0.72637 \(^{\{1\}}\)

0.65308 \(^{\{6\}}\)

0.29742 \(^{\{2\}}\)

1.14904 \(^{\{8\}}\)

0.57935 \(^{\{4\}}\)

0.55220 \(^{\{5\}}\)

\(\hat{\beta }\)

0.53758 \(^{\{6\}}\)

0.59489 \(^{\{8\}}\)

0.37775 \(^{\{1\}}\)

0.56788 \(^{\{7\}}\)

0.46854 \(^{\{3\}}\)

0.44862 \(^{\{2\}}\)

0.35670 \(^{\{4\}}\)

0.36972 \(^{\{5\}}\)

\(\hat{\lambda }\)

1.31911 \(^{\{7\}}\)

0.75846 \(^{\{3\}}\)

0.44620 \(^{\{1\}}\)

0.86673 \(^{\{6\}}\)

0.77043 \(^{\{4\}}\)

8.62363 \(^{\{8\}}\)

0.63671 \(^{\{2\}}\)

0.85450 \(^{\{5\}}\)

\({\hat{a}}\)

2.56005 \(^{\{8\}}\)

0.92505 \(^{\{4\}}\)

0.73821 \(^{\{1\}}\)

1.02285 \(^{\{7\}}\)

0.89952 \(^{\{3\}}\)

0.83741 \(^{\{2\}}\)

0.98962 \(^{\{6\}}\)

0.96006 \(^{\{5\}}\)

\({\hat{b}}\)

3.05303 \(^{\{7\}}\)

1.17272 \(^{\{5\}}\)

0.82103 \(^{\{1\}}\)

1.34672 \(^{\{6\}}\)

1.01733 \(^{\{2\}}\)

5.27306 \(^{\{8\}}\)

1.07322 \(^{\{3\}}\)

1.14417 \(^{\{4\}}\)

\(\sum {Ranks}\)

103 \(^{\{8\}}\)

67 \(^{\{4\}}\)

15 \(^{\{1\}}\)

91 \(^{\{7\}}\)

52 \(^{\{2\}}\)

85 \(^{\{6\}}\)

54 \(^{\{3\}}\)

73 \(^{\{5\}}\)

250

|BIAS|

\(\hat{\alpha }\)

0.45154 \(^{\{7\}}\)

0.36368 \(^{\{4\}}\)

0.21404 \(^{\{1\}}\)

0.36893 \(^{\{5\}}\)

0.24152 \(^{\{2\}}\)

1.07309 \(^{\{8\}}\)

0.35666 \(^{\{3\}}\)

0.38764 \(^{\{6\}}\)

\(\hat{\beta }\)

0.48107 \(^{\{3\}}\)

0.64276 \(^{\{8\}}\)

0.32441 \(^{\{1\}}\)

0.63639 \(^{\{7\}}\)

0.39594 \(^{\{2\}}\)

0.63393 \(^{\{6\}}\)

0.53506 \(^{\{4\}}\)

0.55458 \(^{\{5\}}\)

\(\hat{\lambda }\)

0.28746 \(^{\{7\}}\)

0.21215 \(^{\{4\}}\)

0.13752 \(^{\{1\}}\)

0.21120 \(^{\{3\}}\)

0.18756 \(^{\{2\}}\)

1.21756 \(^{\{8\}}\)

0.22315 \(^{\{5\}}\)

0.26008 \(^{\{6\}}\)

\({\hat{a}}\)

1.62851 \(^{\{8\}}\)

1.05386 \(^{\{4\}}\)

0.57234 \(^{\{1\}}\)

1.09009 \(^{\{7\}}\)

0.60794 \(^{\{2\}}\)

1.05833 \(^{\{5\}}\)

0.98189 \(^{\{3\}}\)

1.08570 \(^{\{6\}}\)

\({\hat{b}}\)

1.33138 \(^{\{7\}}\)

1.03592 \(^{\{5\}}\)

0.56036 \(^{\{1\}}\)

1.09034 \(^{\{6\}}\)

0.66999 \(^{\{2\}}\)

1.89716 \(^{\{8\}}\)

0.87844 \(^{\{3\}}\)

0.91333 \(^{\{4\}}\)

MSE

\(\hat{\alpha }\)

0.73770 \(^{\{7\}}\)

0.28090 \(^{\{3\}}\)

0.09846 \(^{\{1\}}\)

0.29619 \(^{\{4\}}\)

0.16049 \(^{\{2\}}\)

23.65790 \(^{\{8\}}\)

0.37411 \(^{\{5\}}\)

0.46541 \(^{\{6\}}\)

\(\hat{\beta }\)

0.37105 \(^{\{2\}}\)

0.62392 \(^{\{8\}}\)

0.21024 \(^{\{1\}}\)

0.61582 \(^{\{7\}}\)

0.43261 \(^{\{3\}}\)

0.61439 \(^{\{6\}}\)

0.50622 \(^{\{5\}}\)

0.50418 \(^{\{4\}}\)

\(\hat{\lambda }\)

0.19568 \(^{\{7\}}\)

0.07986 \(^{\{2\}}\)

0.03581 \(^{\{1\}}\)

0.08064 \(^{\{3\}}\)

0.08487 \(^{\{4\}}\)

80.70630 \(^{\{8\}}\)

0.08833 \(^{\{5\}}\)

0.14179 \(^{\{6\}}\)

\({\hat{a}}\)

9.33550 \(^{\{8\}}\)

2.13198 \(^{\{3\}}\)

1.06111 \(^{\{1\}}\)

2.34296 \(^{\{5\}}\)

1.74541 \(^{\{2\}}\)

2.85968 \(^{\{7\}}\)

2.39320 \(^{\{6\}}\)

2.25930 \(^{\{4\}}\)

\({\hat{b}}\)

7.32543 \(^{\{7\}}\)

2.45706 \(^{\{4\}}\)

1.14393 \(^{\{1\}}\)

2.69180 \(^{\{5\}}\)

3.92688 \(^{\{6\}}\)

60.56412 \(^{\{8\}}\)

2.08155 \(^{\{3\}}\)

1.90151 \(^{\{2\}}\)

MRE

\(\hat{\alpha }\)

0.90308 \(^{\{7\}}\)

0.72736 \(^{\{4\}}\)

0.42807 \(^{\{2\}}\)

0.73785 \(^{\{5\}}\)

0.29742 \(^{\{1\}}\)

2.14617 \(^{\{8\}}\)

0.71332 \(^{\{3\}}\)

0.77529 \(^{\{6\}}\)

\(\hat{\beta }\)

0.32072 \(^{\{3\}}\)

0.42850 \(^{\{8\}}\)

0.21627 \(^{\{2\}}\)

0.42426 \(^{\{7\}}\)

0.13509 \(^{\{1\}}\)

0.39663 \(^{\{8\}}\)

0.25141 \(^{\{4\}}\)

0.27933 \(^{\{5\}}\)

\(\hat{\lambda }\)

0.57491 \(^{\{7\}}\)

0.32904 \(^{\{4\}}\)

0.19195 \(^{\{1\}}\)

0.32292 \(^{\{3\}}\)

0.20629 \(^{\{2\}}\)

1.10149 \(^{\{8\}}\)

0.35804 \(^{\{5\}}\)

0.40727 \(^{\{6\}}\)

\({\hat{a}}\)

0.63300 \(^{\{5\}}\)

0.68519 \(^{\{6\}}\)

0.26245 \(^{\{2\}}\)

0.69799 \(^{\{7\}}\)

0.23609 \(^{\{1\}}\)

0.83696 \(^{\{8\}}\)

0.52349 \(^{\{3\}}\)

0.63186 \(^{\{4\}}\)

\({\hat{b}}\)

0.58632 \(^{\{5\}}\)

0.68100 \(^{\{6\}}\)

0.27224 \(^{\{2\}}\)

0.73277 \(^{\{7\}}\)

0.25848 \(^{\{1\}}\)

1.01292 \(^{\{8\}}\)

0.52224 \(^{\{3\}}\)

0.53229 \(^{\{4\}}\)

\(\sum {Ranks}\)

95 \(^{\{7\}}\)

70 \(^{\{4\}}\)

18 \(^{\{1\}}\)

80 \(^{\{6\}}\)

34 \(^{\{2\}}\)

107 \(^{\{8\}}\)

60 \(^{\{3\}}\)

76 \(^{\{5\}}\)

500

|BIAS|

\(\hat{\alpha }\)

0.35885 \(^{\{7\}}\)

0.30070 \(^{\{5\}}\)

0.14756 \(^{\{1\}}\)

0.32654 \(^{\{6\}}\)

0.14871 \(^{\{2\}}\)

8.00000 \(^{\{8\}}\)

0.28968 \(^{\{4\}}\)

0.27610 \(^{\{3\}}\)

\(\hat{\beta }\)

0.34982 \(^{\{3\}}\)

0.48291 \(^{\{6\}}\)

0.21401 \(^{\{2\}}\)

0.48327 \(^{\{7\}}\)

0.20264 \(^{\{1\}}\)

0.59495 \(^{\{8\}}\)

0.37712 \(^{\{4\}}\)

0.41900 \(^{\{5\}}\)

\(\hat{\lambda }\)

0.27474 \(^{\{7\}}\)

0.16452 \(^{\{4\}}\)

0.09598 \(^{\{1\}}\)

0.16146 \(^{\{3\}}\)

0.10314 \(^{\{2\}}\)

0.55075 \(^{\{8\}}\)

0.17902 \(^{\{5\}}\)

0.20364 \(^{\{6\}}\)

\({\hat{a}}\)

0.82290 \(^{\{5\}}\)

0.89074 \(^{\{6\}}\)

0.34118 \(^{\{2\}}\)

0.90739 \(^{\{7\}}\)

0.30692 \(^{\{1\}}\)

1.08804 \(^{\{8\}}\)

0.68054 \(^{\{3\}}\)

0.82142 \(^{\{4\}}\)

\({\hat{b}}\)

0.70358 \(^{\{5\}}\)

0.81720 \(^{\{6\}}\)

0.32668 \(^{\{2\}}\)

0.87932 \(^{\{7\}}\)

0.31018 \(^{\{1\}}\)

1.21551 \(^{\{8\}}\)

0.62668 \(^{\{3\}}\)

0.63875 \(^{\{4\}}\)

MSE

\(\hat{\alpha }\)

0.29257 \(^{\{7\}}\)

0.21993 \(^{\{5\}}\)

0.04636 \(^{\{1\}}\)

0.24856 \(^{\{6\}}\)

0.06675 \(^{\{2\}}\)

1.96818 \(^{\{8\}}\)

0.19921 \(^{\{4\}}\)

0.17010 \(^{\{3\}}\)

\(\hat{\beta }\)

0.19410 \(^{\{3\}}\)

0.34633 \(^{\{7\}}\)

0.09831 \(^{\{1\}}\)

0.34434 \(^{\{6\}}\)

0.13022 \(^{\{2\}}\)

0.52823 \(^{\{8\}}\)

0.24468 \(^{\{4\}}\)

0.27192 \(^{\{5\}}\)

\(\hat{\lambda }\)

0.17655 \(^{\{7\}}\)

0.04480 \(^{\{4\}}\)

0.01452 \(^{\{1\}}\)

0.04181 \(^{\{3\}}\)

0.02604 \(^{\{2\}}\)

1.42854 \(^{\{8\}}\)

0.05935 \(^{\{5\}}\)

0.08624 \(^{\{6\}}\)

\(\hat{a}\)

2.55423 \(^{\{7\}}\)

1.65318 \(^{\{5\}}\)

0.39050 \(^{\{1\}}\)

1.68069 \(^{\{6\}}\)

0.41505 \(^{\{2\}}\)

2.82497 \(^{\{8\}}\)

1.21969 \(^{\{3\}}\)

1.40095 \(^{\{4\}}\)

\(\hat{b}\)

2.39326 \(^{\{7\}}\)

1.48191 \(^{\{5\}}\)

0.35758 \(^{\{1\}}\)

1.74645 \(^{\{6\}}\)

0.59674 \(^{\{2\}}\)

3.97401 \(^{\{8\}}\)

1.12441 \(^{\{4\}}\)

0.91611 \(^{\{3\}}\)

MRE

\(\hat{\alpha }\)

0.71769 \(^{\{7\}}\)

0.60141 \(^{\{5\}}\)

0.29512 \(^{\{1\}}\)

0.65308 \(^{\{6\}}\)

0.29742 \(^{\{2\}}\)

1.14904 \(^{\{8\}}\)

0.57935 \(^{\{4\}}\)

0.55220 \(^{\{3\}}\)

\(\hat{\beta }\)

0.23321 \(^{\{3\}}\)

0.32194 \(^{\{6\}}\)

0.14267 \(^{\{2\}}\)

0.32218 \(^{\{7\}}\)

0.13509 \(^{\{1\}}\)

0.39663 \(^{\{8\}}\)

0.25141 \(^{\{4\}}\)

0.27933 \(^{\{5\}}\)

\(\hat{\lambda }\)

0.54947 \(^{\{7\}}\)

0.32904 \(^{\{4\}}\)

0.19195 \(^{\{1\}}\)

0.32292 \(^{\{3\}}\)

0.20629 \(^{\{2\}}\)

1.10149 \(^{\{8\}}\)

0.35804 \(^{\{5\}}\)

0.40727 \(^{\{6\}}\)

\(\hat{a}\)

0.63300 \(^{\{5\}}\)

0.68519 \(^{\{6\}}\)

0.26245 \(^{\{2\}}\)

0.69799 \(^{\{7\}}\)

0.23609 \(^{\{1\}}\)

0.83696 \(^{\{8\}}\)

0.52349 \(^{\{3\}}\)

0.63186 \(^{\{4\}}\)

\(\hat{b}\)

0.58632 \(^{\{5\}}\)

0.68100 \(^{\{6\}}\)

0.27224 \(^{\{2\}}\)

0.73277 \(^{\{7\}}\)

0.25848 \(^{\{1\}}\)

1.01292 \(^{\{8\}}\)

0.52224 \(^{\{3\}}\)

0.53229 \(^{\{4\}}\)

\(\sum {Ranks}\)

85 \(^{\{6\}}\)

80 \(^{\{5\}}\)

21 \(^{\{1\}}\)

87 \(^{\{7\}}\)

24 \(^{\{2\}}\)

120 \(^{\{8\}}\)

58 \(^{\{3\}}\)

65 \(^{\{4\}}\)