Table 7 MLEs, MSEs, lower 95% ACI Limit (L95%CL), upper 95% ACI limit (U95%CL) and 95% ACI coverage probability (95%ACICP) under multiply censored data with \(\left( {\alpha = 0.2,\beta = 1.6,\theta = 2.5,CL = 0.30,\tau = 5} \right)\).

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

\(\alpha\)

0.171446

0.0213531

0.1295938

0.2132982

0.083704

95.18905

\(\beta\)

1.962471

0.820904

0.3534995

3.571443

3.217911

95.50904

\(\theta\)

2.725251

0.7837417

1.189118

4.261385

3.072236

95.00905

90

\(\alpha\)

0.1766426

0.0208124

0.1358502

0.217435

0.081584

95.45905

\(\beta\)

1.841277

0.7137327

0.4423609

3.240193

2.797804

95.57904

\(\theta\)

2.682347

0.7729612

1.167344

4.197351

3.029977

94.69905

100

\(\alpha\)

0.1772288

0.0203246

0.1373925

0.2170652

0.079672

95.40905

\(\beta\)

1.837299

0.6865213

0.4917177

3.182881

2.691136

95.35905

\(\theta\)

2.694221

0.7757881

1.173676

4.214765

3.041059

95.10905

110

\(\alpha\)

0.1750145

0.0189565

0.1378596

0.2121695

0.074309

95.47905

\(\beta\)

1.85638

0.6671368

0.5487923

3.163969

2.615151

95.58904

\(\theta\)

2.742036

0.7588724

1.254647

4.229426

2.974749

95.16905

120

\(\alpha\)

0.175405

0.0181038

0.1399213

0.2108886

0.070967

95.42905

\(\beta\)

1.845531

0.6238778

0.6227309

3.068332

2.445577

95.51904

\(\theta\)

2.735305

0.7447443

1.275606

4.195004

2.919369

95.11905