Table 3 Estimated results of the ML estimates based on three sampling designs under perfect and imperfect ranking.

From: Efficiency of ranked set sampling designs in power Lindley system reliability estimation with uncensored and right-censored data

\(\sigma\)

Sampling design

AE

Bias

MSE

0

SRS

0.6719

0.0021

0.0067

RSS

0.6721

0.0023

0.0019

ERSS

0.6709

0.0011

0.0022

0.25

SRS

0.6719

0.0021

0.0067

RSS

0.6698

0.0000

0.0020

ERSS

0.6725

0.0027

0.0022

0.5

SRS

0.6719

0.0021

0.0067

RSS

0.6678

-0.0020

0.0022

ERSS

0.6743

0.0045

0.0024

0.75

SRS

0.6719

0.0021

0.0067

RSS

0.6647

-0.0051

0.0024

ERSS

0.6775

0.0077

0.0027

1

SRS

0.6719

0.0021

0.0067

RSS

0.6608

-0.0090

0.0025

ERSS

0.6824

0.0126

0.0028

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