Table 6 MLEs, MSEs, lower 95% ACI limit (L95%CL), upper 95% ACI limit (U95%CL), 95% ACI length (95%ACIL) and 95% ACI coverage probability (95%ACICP) under multiply censored data with \(\left( {\alpha = 0.2,\beta = 1.6,\theta = 2.5,CL = 0.20,\tau = 5} \right)\).

From: Statistical inferences under step stress partially accelerated life testing based on multiple censoring approaches using simulated and real-life engineering data

n

Parameters

MLEs

MSEs

L95%CL

U95%CL

95%ACIL

95%ACICP

80

\(\alpha\)

0.1674595

0.0205570

0.1271677

0.2077513

0.080583

95.33905

\(\beta\)

1.769901

0.737674

0.32406

3.215742

2.891653

95.19905

\(\theta\)

2.769546

0.7580471

1.283774

4.255319

2.971515

94.73905

90

\(\alpha\)

0.1658654

0.0193200

0.1279981

0.2037327

0.075734

95.17905

\(\beta\)

1.688259

0.6639709

0.3868759

2.989642

2.60274

95.68904

\(\theta\)

2.810845

0.7488733

1.343053

4.278637

2.935555

94.94905

100

\(\alpha\)

0.1641433

0.0181911

0.1284886

0.199798

0.071309

95.12905

\(\beta\)

1.695375

0.6315235

0.4575886

2.933161

2.475548

95.41905

\(\theta\)

2.870894

0.7401584

1.420184

4.321605

2.901392

95.42905

110

\(\alpha\)

0.1658051

0.0175181

0.1314695

0.2001406

0.06867

94.97905

\(\beta\)

1.687168

0.6067909

0.4978576

2.876478

2.378597

95.71904

\(\theta\)

2.871401

0.7416124

1.41784

4.324961

2.907092

95.65904

120

\(\alpha\)

0.164657

0.0167029

0.1319192

0.1973949

0.065475

95.24905

\(\beta\)

1.7164

0.5776405

0.5842243

2.848575

2.264328

95.64904

\(\theta\)

2.876607

0.7224927

1.460521

4.292693

2.832144

95.55904