Table 2 Bias and MSE for parameters \(\alpha , \,\,\beta\,\, and\,\, \gamma .\)

From: Evaluating the lifetime performance index of omega distribution based on progressive type-II censored samples

\(\alpha\)

\(\beta\)

\(\gamma\)

N

Bias (\(\alpha )\)

MSE (α)

Bias (\(\beta )\)

MSE (\(\beta )\)

Bias (\(\gamma )\)

MSE (\(\gamma )\)

0.2

0.6

50

30

 − 0.02079

0.001286

 − 0.04186

0.003921

 − 0.40384

0.305149

 

50

 − 0.01293

0.000757

 − 0.02657

0.002246

 − 0.37943

0.246498

70

 − 0.00803

0.000517

 − 0.01869

0.001484

 − 0.35149

0.202034

90

 − 0.00690

0.000430

 − 0.01392

0.001188

 − 0.32567

0.177657

100

 − 0.00647

0.000363

 − 0.01268

0.001034

 − 0.32148

0.175021

200

 − 0.00238

0.000185

 − 0.00580

0.000479

 − 0.25142

0.102086