Table 6 The different methods of estimations for \((\lambda ,\mu ,\theta ,\gamma )\) using real data.

From: Different estimation techniques for constant-partially accelerated life tests of chen distribution using complete data

Estimates

MLE

LSE

WLSE

CVME

ADE

RADE

QE

MPSE

\({\hat{\lambda }}\)

0.0491

0.0639

0.0549

0.0541

0.0548

0.0618

0.0577

0.0608

\({\hat{\xi }}\)

0.2578

0.2282

0.2392

0.2428

0.2420

0.2374

0.2441

0.2385

\({\hat{\varphi }}\)

1.7208

1.9772

2.0322

2.1235

1.9967

1.7793

1.4484

1.6282

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