Table 6 Numerical values of the KAPLL distribution for θ = (0.5, 1.5, 0.5, 1.1, 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|

\(\hat{\alpha }\)

7.33456 \(^{\{7\}}\)

1.38926 \(^{\{2\}}\)

1.35976 \(^{\{1\}}\)

1.65595 \(^{\{3\}}\)

1.80146 \(^{\{5\}}\)

12.65589 \(^{\{8\}}\)

1.75620 \(^{\{4\}}\)

1.99641 \(^{\{6\}}\)

\(\hat{\beta }\)

1.04280 \(^{\{7\}}\)

1.00917 \(^{\{5\}}\)

0.74365 \(^{\{2\}}\)

0.97049 \(^{\{4\}}\)

1.08162 \(^{\{8\}}\)

0.70165 \(^{\{1\}}\)

1.03252 \(^{\{6\}}\)

0.96964 \(^{\{3\}}\)

\(\hat{\lambda }\)

3.61486 \(^{\{7\}}\)

0.97180 \(^{\{3\}}\)

0.43525 \(^{\{1\}}\)

0.99036 \(^{\{4\}}\)

2.51147 \(^{\{6\}}\)

6.45657 \(^{\{8\}}\)

0.67095 \(^{\{2\}}\)

1.35638 \(^{\{5\}}\)

\({\hat{a}}\)

4.69408 \(^{\{8\}}\)

1.13577 \(^{\{2\}}\)

1.17080 \(^{\{3\}}\)

1.29105 \(^{\{4\}}\)

1.66163 \(^{\{7\}}\)

0.89241 \(^{\{1\}}\)

1.51592 \(^{\{6\}}\)

1.30182 \(^{\{5\}}\)

\({\hat{b}}\)

12.81277 \(^{\{8\}}\)

2.33602 \(^{\{2\}}\)

1.74975 \(^{\{1\}}\)

2.65505 \(^{\{3\}}\)

3.31281 \(^{\{5\}}\)

11.33044 \(^{\{7\}}\)

2.83263 \(^{\{4\}}\)

3.54498 \(^{\{6\}}\)

MSE

\(\hat{\alpha }\)

1980.28316 \(^{\{7\}}\)

36.56780 \(^{\{1\}}\)

104.03092 \(^{\{4\}}\)

93.10813 \(^{\{3\}}\)

310.88334 \(^{\{6\}}\)

2028.52414 \(^{\{8\}}\)

154.01348 \(^{\{5\}}\)

63.97997 \(^{\{2\}}\)

\(\hat{\beta }\)

1.91463 \(^{\{6\}}\)

1.67370 \(^{\{5\}}\)

1.01067 \(^{\{2\}}\)

1.65201 \(^{\{3\}}\)

2.78783 \(^{\{8\}}\)

0.82660 \(^{\{1\}}\)

1.92654 \(^{\{7\}}\)

1.67047 \(^{\{4\}}\)

\(\hat{\lambda }\)

1052.96209 \(^{\{8\}}\)

15.17457 \(^{\{4\}}\)

2.20518 \(^{\{1\}}\)

9.24062 \(^{\{3\}}\)

956.98240 \(^{\{7\}}\)

384.60779 \(^{\{6\}}\)

6.84232 \(^{\{2\}}\)

24.20128 \(^{\{5\}}\)

\({\hat{a}}\)

57.20212 \(^{\{8\}}\)

2.70028 \(^{\{2\}}\)

4.02568 \(^{\{1\}}\)

3.57443 \(^{\{3\}}\)

12.12977 \(^{\{6\}}\)

2.24387 \(^{\{7\}}\)

5.68728 \(^{\{4\}}\)

3.72829 \(^{\{5\}}\)

\({\hat{b}}\)

3051.10202 \(^{\{7\}}\)

39.12638 \(^{\{2\}}\)

25.55038 \(^{\{1\}}\)

43.72462 \(^{\{3\}}\)

393.18296 \(^{\{5\}}\)

944.54632 \(^{\{8\}}\)

103.58815 \(^{\{4\}}\)

110.37023 \(^{\{6\}}\)

MRE

\(\hat{\alpha }\)

14.66912 \(^{\{7\}}\)

2.77852 \(^{\{2\}}\)

2.71952 \(^{\{1\}}\)

3.31190 \(^{\{3\}}\)

3.60293 \(^{\{5\}}\)

25.31178 \(^{\{8\}}\)

3.51240 \(^{\{4\}}\)

3.99281 \(^{\{6\}}\)

\(\hat{\beta }\)

0.69520 \(^{\{7\}}\)

0.67278 \(^{\{5\}}\)

0.49577 \(^{\{2\}}\)

0.64699 \(^{\{4\}}\)

0.72108 \(^{\{8\}}\)

0.46777 \(^{\{1\}}\)

0.68835 \(^{\{6\}}\)

0.64643 \(^{\{3\}}\)

\(\hat{\lambda }\)

7.22972 \(^{\{7\}}\)

1.94360 \(^{\{3\}}\)

0.87051 \(^{\{1\}}\)

1.98072 \(^{\{4\}}\)

5.02294 \(^{\{6\}}\)

12.91315 \(^{\{8\}}\)

1.34189 \(^{\{2\}}\)

2.71275 \(^{\{5\}}\)

\({\hat{a}}\)

4.26735 \(^{\{8\}}\)

1.03252 \(^{\{2\}}\)

1.06436 \(^{\{3\}}\)

1.17368 \(^{\{4\}}\)

1.51057 \(^{\{7\}}\)

0.81129 \(^{\{1\}}\)

1.37810 \(^{\{6\}}\)

1.18347 \(^{\{5\}}\)

\({\hat{b}}\)

10.67731 \(^{\{8\}}\)

1.94668 \(^{\{2\}}\)

1.45812 \(^{\{1\}}\)

2.21254 \(^{\{3\}}\)

2.76067 \(^{\{5\}}\)

9.44203 \(^{\{7\}}\)

2.36053 \(^{\{4\}}\)

2.95415 \(^{\{6\}}\)

\(\sum {Ranks}\)

111 \(^{\{8\}}\)

42 \(^{\{2\}}\)

29 \(^{\{1\}}\)

51 \(^{\{3\}}\)

96 \(^{\{7\}}\)

73 \(^{\{6\}}\)

68 \(^{\{4\}}\)

70 \(^{\{5\}}\)

100

|BIAS|

\(\hat{\alpha }\)

2.42640 \(^{\{7\}}\)

0.55106 \(^{\{3\}}\)

0.50483 \(^{\{2\}}\)

0.77253 \(^{\{6\}}\)

0.49271 \(^{\{1\}}\)

5.12919 \(^{\{8\}}\)

0.66276 \(^{\{4\}}\)

0.68811 \(^{\{5\}}\)

\(\hat{\beta }\)

0.80877 \(^{\{6\}}\)

0.87406 \(^{\{8\}}\)

0.52866 \(^{\{1\}}\)

0.83991 \(^{\{7\}}\)

0.69908 \(^{\{3\}}\)

0.66093 \(^{\{2\}}\)

0.77118 \(^{\{4\}}\)

0.77679 \(^{\{5\}}\)

\(\hat{\lambda }\)

1.33128 \(^{\{7\}}\)

0.43880 \(^{\{3\}}\)

0.22592 \(^{\{1\}}\)

0.51526 \(^{\{6\}}\)

0.46614 \(^{\{4\}}\)

5.07549 \(^{\{8\}}\)

0.31129 \(^{\{2\}}\)

0.48645 \(^{\{5\}}\)

\({\hat{a}}\)

2.77457 \(^{\{8\}}\)

1.07371 \(^{\{4\}}\)

0.72560 \(^{\{1\}}\)

1.22572 \(^{\{7\}}\)

0.97362 \(^{\{2\}}\)

0.98439 \(^{\{3\}}\)

1.12954 \(^{\{6\}}\)

1.12948 \(^{\{5\}}\)

\({\hat{b}}\)

5.64302 \(^{\{7\}}\)

1.47045 \(^{\{3\}}\)

1.00659 \(^{\{1\}}\)

1.81188 \(^{\{6\}}\)

1.49176 \(^{\{4\}}\)

6.78444 \(^{\{8\}}\)

1.44124 \(^{\{2\}}\)

1.58196 \(^{\{5\}}\)

MSE

\(\hat{\alpha }\)

151.72662 \(^{\{7\}}\)

1.24826 \(^{\{2\}}\)

1.22870 \(^{\{1\}}\)

13.83277 \(^{\{6\}}\)

6.53826 \(^{\{5\}}\)

418.91065 \(^{\{8\}}\)

1.77298 \(^{\{3\}}\)

4.15017 \(^{\{4\}}\)

\(\hat{\beta }\)

1.08838 \(^{\{5\}}\)

1.22056 \(^{\{8\}}\)

0.54272 \(^{\{1\}}\)

1.10947 \(^{\{6\}}\)

1.20524 \(^{\{7\}}\)

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

0.98338 \(^{\{3\}}\)

1.08278 \(^{\{4\}}\)

\(\hat{\lambda }\)

344.87276 \(^{\{7\}}\)

1.05437 \(^{\{3\}}\)

0.11262 \(^{\{1\}}\)

2.43180 \(^{\{5\}}\)

13.43283 \(^{\{6\}}\)

829.52179 \(^{\{8\}}\)

0.21779 \(^{\{2\}}\)

2.26268 \(^{\{4\}}\)

\({\hat{a}}\)

22.61881 \(^{\{8\}}\)

2.37882 \(^{\{2\}}\)

1.59389 \(^{\{1\}}\)

3.23610 \(^{\{6\}}\)

4.03338 \(^{\{7\}}\)

2.43539 \(^{\{3\}}\)

3.15933 \(^{\{5\}}\)

2.84484 \(^{\{4\}}\)

\({\hat{b}}\)

930.33900 \(^{\{8\}}\)

6.34267 \(^{\{3\}}\)

3.47107 \(^{\{1\}}\)

17.68316 \(^{\{5\}}\)

25.63750 \(^{\{6\}}\)

728.96137 \(^{\{7\}}\)

5.82179 \(^{\{2\}}\)

13.98925 \(^{\{4\}}\)

MRE

\(\hat{\alpha }\)

4.85280 \(^{\{7\}}\)

1.10212 \(^{\{3\}}\)

1.00967 \(^{\{2\}}\)

1.54506 \(^{\{6\}}\)

0.98542 \(^{\{1\}}\)

10.25839 \(^{\{8\}}\)

1.32551 \(^{\{4\}}\)

1.37622 \(^{\{5\}}\)

\(\hat{\beta }\)

0.53918 \(^{\{6\}}\)

0.58271 \(^{\{8\}}\)

0.35244 \(^{\{1\}}\)

0.41773 \(^{\{7\}}\)

0.46606 \(^{\{3\}}\)

0.44062 \(^{\{2\}}\)

0.51412 \(^{\{4\}}\)

0.51786 \(^{\{5\}}\)

\(\hat{\lambda }\)

2.66257 \(^{\{7\}}\)

0.87760 \(^{\{3\}}\)

0.45183 \(^{\{1\}}\)

1.03053 \(^{\{6\}}\)

0.93229 \(^{\{4\}}\)

10.15098 \(^{\{8\}}\)

0.62258 \(^{\{2\}}\)

0.97290 \(^{\{5\}}\)

\({\hat{a}}\)

2.52233 \(^{\{8\}}\)

0.97610 \(^{\{4\}}\)

0.65963 \(^{\{1\}}\)

1.11429 \(^{\{7\}}\)

0.88511 \(^{\{2\}}\)

0.89490 \(^{\{3\}}\)

1.02685 \(^{\{6\}}\)

1.02680 \(^{\{5\}}\)

\({\hat{b}}\)

4.70252 \(^{\{7\}}\)

1.22538 \(^{\{3\}}\)

0.83883 \(^{\{1\}}\)

1.50990 \(^{\{6\}}\)

1.24313 \(^{\{4\}}\)

5.65370 \(^{\{8\}}\)

1.20103 \(^{\{2\}}\)

1.31830 \(^{\{5\}}\)

\(\sum {Ranks}\)

105 \(^{\{8\}}\)

60 \(^{\{4\}}\)

17 \(^{\{1\}}\)

92 \(^{\{7\}}\)

59 \(^{\{3\}}\)

86 \(^{\{6\}}\)

51 \(^{\{2\}}\)

70 \(^{\{5\}}\)

250

|BIAS|

\(\hat{\alpha }\)

0.74436 \(^{\{7\}}\)

0.42494 \(^{\{3\}}\)

0.27098 \(^{\{2\}}\)

0.43157 \(^{\{4\}}\)

0.25931 \(^{\{1\}}\)

1.34578 \(^{\{8\}}\)

0.48593 \(^{\{6\}}\)

0.46979 \(^{\{5\}}\)

\(\hat{\beta }\)

0.48119 \(^{\{3\}}\)

0.64179 \(^{\{8\}}\)

0.29941 \(^{\{1\}}\)

0.62659 \(^{\{7\}}\)

0.41092 \(^{\{2\}}\)

0.61360 \(^{\{6\}}\)

0.53331 \(^{\{4\}}\)

0.54595 \(^{\{5\}}\)

\(\hat{\lambda }\)

0.29436 \(^{\{7\}}\)

0.23069 \(^{\{3\}}\)

0.13571 \(^{\{1\}}\)

0.24185 \(^{\{5\}}\)

0.17811 \(^{\{2\}}\)

1.48411 \(^{\{8\}}\)

0.23247 \(^{\{4\}}\)

0.25769 \(^{\{6\}}\)

\({\hat{a}}\)

1.22361 \(^{\{8\}}\)

0.90018 \(^{\{4\}}\)

0.45350 \(^{\{1\}}\)

0.94375 \(^{\{5\}}\)

0.53277 \(^{\{2\}}\)

0.98477 \(^{\{7\}}\)

0.85536 \(^{\{3\}}\)

0.96788 \(^{\{6\}}\)

\({\hat{b}}\)

1.54671 \(^{\{7\}}\)

1.13231 \(^{\{5\}}\)

0.56658 \(^{\{1\}}\)

1.20242 \(^{\{6\}}\)

0.75828 \(^{\{2\}}\)

2.18539 \(^{\{8\}}\)

1.01671 \(^{\{3\}}\)

1.02101 \(^{\{4\}}\)

MSE

\(\hat{\alpha }\)

3.33489 \(^{\{7\}}\)

0.42465 \(^{\{4\}}\)

0.23743 \(^{\{2\}}\)

0.41778 \(^{\{3\}}\)

0.19265 \(^{\{1\}}\)

42.08727 \(^{\{8\}}\)

0.78241 \(^{\{6\}}\)

0.70966 \(^{\{5\}}\)

\(\hat{\beta }\)

0.37727 \(^{\{2\}}\)

0.60976 \(^{\{8\}}\)

0.17786 \(^{\{1\}}\)

0.58674 \(^{\{7\}}\)

0.42207 \(^{\{3\}}\)

0.55548 \(^{\{6\}}\)

0.48271 \(^{\{5\}}\)

0.47553 \(^{\{4\}}\)

\(\hat{\lambda }\)

0.20610 \(^{\{7\}}\)

0.11413 \(^{\{4\}}\)

0.03550 \(^{\{1\}}\)

0.14141 \(^{\{6\}}\)

0.08150 \(^{\{2\}}\)

78.50242 \(^{\{8\}}\)

0.09260 \(^{\{3\}}\)

0.12883 \(^{\{5\}}\)

\({\hat{a}}\)

5.41023 \(^{\{8\}}\)

1.73323 \(^{\{3\}}\)

0.73747 \(^{\{1\}}\)

1.93751 \(^{\{4\}}\)

1.27584 \(^{\{2\}}\)

2.70132 \(^{\{7\}}\)

2.03777 \(^{\{5\}}\)

2.10666 \(^{\{6\}}\)

\({\hat{b}}\)

11.42179 \(^{\{7\}}\)

3.07742 \(^{\{4\}}\)

1.27643 \(^{\{1\}}\)

3.39453 \(^{\{5\}}\)

5.27248 \(^{\{6\}}\)

74.89245 \(^{\{8\}}\)

3.03455 \(^{\{3\}}\)

2.57829 \(^{\{2\}}\)

MRE

\(\hat{\alpha }\)

1.48871 \(^{\{7\}}\)

0.84987 \(^{\{3\}}\)

0.54195 \(^{\{2\}}\)

0.86313 \(^{\{4\}}\)

0.31171 \(^{\{1\}}\)

2.69155 \(^{\{8\}}\)

0.97186 \(^{\{6\}}\)

0.93958 \(^{\{5\}}\)

\(\hat{\beta }\)

0.32079 \(^{\{3\}}\)

0.42786 \(^{\{8\}}\)

0.19960 \(^{\{2\}}\)

0.41773 \(^{\{7\}}\)

0.14498 \(^{\{1\}}\)

0.40906 \(^{\{6\}}\)

0.35554 \(^{\{4\}}\)

0.36397 \(^{\{5\}}\)

\(\hat{\lambda }\)

0.58873 \(^{\{7\}}\)

0.46137 \(^{\{3\}}\)

0.27143 \(^{\{2\}}\)

0.48370 \(^{\{5\}}\)

0.18713 \(^{\{1\}}\)

2.96822 \(^{\{8\}}\)

0.46495 \(^{\{4\}}\)

0.51537 \(^{\{6\}}\)

\({\hat{a}}\)

1.11237 \(^{\{8\}}\)

0.81835 \(^{\{4\}}\)

0.41228 \(^{\{1\}}\)

0.85795 \(^{\{5\}}\)

0.48433 \(^{\{2\}}\)

0.89525 \(^{\{7\}}\)

0.77760 \(^{\{3\}}\)

0.87989 \(^{\{6\}}\)

\({\hat{b}}\)

1.28893 \(^{\{7\}}\)

0.94359 \(^{\{5\}}\)

0.47215 \(^{\{1\}}\)

1.00202 \(^{\{6\}}\)

0.63190 \(^{\{2\}}\)

1.82116 \(^{\{8\}}\)

0.84726 \(^{\{3\}}\)

0.85084 \(^{\{4\}}\)

\(\sum {Ranks}\)

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

69 \(^{\{4\}}\)

20 \(^{\{1\}}\)

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

30 \(^{\{2\}}\)

111 \(^{\{8\}}\)

62 \(^{\{3\}}\)

74 \(^{\{5\}}\)

500

|BIAS|

\(\hat{\alpha }\)

0.45700 \(^{\{7\}}\)

0.38068 \(^{\{4\}}\)

0.18916 \(^{\{2\}}\)

0.42425 \(^{\{6\}}\)

0.15585 \(^{\{1\}}\)

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

0.39933 \(^{\{5\}}\)

0.34425 \(^{\{3\}}\)

\(\hat{\beta }\)

0.35195 \(^{\{3\}}\)

0.47907 \(^{\{7\}}\)

0.22324 \(^{\{2\}}\)

0.47757 \(^{\{6\}}\)

0.21748 \(^{\{1\}}\)

0.58784 \(^{\{8\}}\)

0.37349 \(^{\{4\}}\)

0.40889 \(^{\{5\}}\)

\(\hat{\lambda }\)

0.27922 \(^{\{7\}}\)

0.17447 \(^{\{4\}}\)

0.10275 \(^{\{2\}}\)

0.16728 \(^{\{3\}}\)

0.09357 \(^{\{1\}}\)

0.92382 \(^{\{8\}}\)

0.18674 \(^{\{5\}}\)

0.20692 \(^{\{6\}}\)

\({\hat{a}}\)

0.65039 \(^{\{4\}}\)

0.74067 \(^{\{7\}}\)

0.28280 \(^{\{2\}}\)

0.74066 \(^{\{6\}}\)

0.27836 \(^{\{1\}}\)

1.07300 \(^{\{8\}}\)

0.55749 \(^{\{3\}}\)

0.69247 \(^{\{5\}}\)

\({\hat{b}}\)

0.75424 \(^{\{5\}}\)

0.88013 \(^{\{6\}}\)

0.34005 \(^{\{1\}}\)

0.95158 \(^{\{7\}}\)

0.34495 \(^{\{2\}}\)

1.56713 \(^{\{8\}}\)

0.68952 \(^{\{3\}}\)

0.69752 \(^{\{4\}}\)

MSE

\(\hat{\alpha }\)

0.61419 \(^{\{7\}}\)

0.33102 \(^{\{4\}}\)

0.09468 \(^{\{2\}}\)

0.43840 \(^{\{5\}}\)

0.07462 \(^{\{1\}}\)

4.95213 \(^{\{8\}}\)

0.45935 \(^{\{6\}}\)

0.32327 \(^{\{3\}}\)

\(\hat{\beta }\)

0.20023 \(^{\{3\}}\)

0.34194 \(^{\{7\}}\)

0.10455 \(^{\{1\}}\)

0.33449 \(^{\{6\}}\)

0.13594 \(^{\{2\}}\)

0.50041 \(^{\{8\}}\)

0.23760 \(^{\{4\}}\)

0.26315 \(^{\{5\}}\)

\(\hat{\lambda }\)

0.17778 \(^{\{7\}}\)

0.04559 \(^{\{4\}}\)

0.01777 \(^{\{1\}}\)

0.04449 \(^{\{3\}}\)

0.02196 \(^{\{2\}}\)

88.16119 \(^{\{8\}}\)

0.05950 \(^{\{5\}}\)

0.07808 \(^{\{6\}}\)

\({\hat{a}}\)

1.76911 \(^{\{7\}}\)

1.27425 \(^{\{6\}}\)

0.24527 \(^{\{1\}}\)

1.21132 \(^{\{5\}}\)

0.31193 \(^{\{2\}}\)

2.91211 \(^{\{8\}}\)

0.90346 \(^{\{3\}}\)

1.14540 \(^{\{4\}}\)

\({\hat{b}}\)

2.89955 \(^{\{7\}}\)

1.84740 \(^{\{5\}}\)

0.39680 \(^{\{1\}}\)

2.21361 \(^{\{6\}}\)

0.90606 \(^{\{2\}}\)

49.11612 \(^{\{8\}}\)

1.52244 \(^{\{4\}}\)

1.23049 \(^{\{3\}}\)

MRE

\(\hat{\alpha }\)

0.91399 \(^{\{7\}}\)

0.76135 \(^{\{4\}}\)

0.37831 \(^{\{2\}}\)

0.84849 \(^{\{6\}}\)

0.31171 \(^{\{1\}}\)

1.33575 \(^{\{8\}}\)

0.79866 \(^{\{5\}}\)

0.68850 \(^{\{3\}}\)

\(\hat{\beta }\)

0.23463 \(^{\{3\}}\)

0.31938 \(^{\{7\}}\)

0.14883 \(^{\{2\}}\)

0.31838 \(^{\{6\}}\)

0.14498 \(^{\{1\}}\)

0.39189 \(^{\{8\}}\)

0.24900 \(^{\{4\}}\)

0.27259 \(^{\{5\}}\)

\(\hat{\lambda }\)

0.55845 \(^{\{7\}}\)

0.34894 \(^{\{4\}}\)

0.20550 \(^{\{2\}}\)

0.33456 \(^{\{3\}}\)

0.18713 \(^{\{1\}}\)

1.84763 \(^{\{8\}}\)

0.37348 \(^{\{5\}}\)

0.41384 \(^{\{6\}}\)

\({\hat{a}}\)

0.59127 \(^{\{4\}}\)

0.67334 \(^{\{7\}}\)

0.25709 \(^{\{2\}}\)

0.67333 \(^{\{6\}}\)

0.25305 \(^{\{1\}}\)

0.97545 \(^{\{8\}}\)

0.50681 \(^{\{3\}}\)

0.62952 \(^{\{5\}}\)

\({\hat{b}}\)

0.62853 \(^{\{5\}}\)

0.73344 \(^{\{6\}}\)

0.28337 \(^{\{1\}}\)

0.79298 \(^{\{7\}}\)

0.28746 \(^{\{2\}}\)

1.30594 \(^{\{8\}}\)

0.57460 \(^{\{3\}}\)

0.58127 \(^{\{4\}}\)

\(\sum {Ranks}\)

83 \(^{\{7\}}\)

82 \(^{\{6\}}\)

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

81 \(^{\{5\}}\)

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

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

62 \(^{\{3\}}\)

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