Results 1 to 10 of about 28,068 (205)

Modified Class of Estimators Using Ranked Set Sampling

open access: yesMathematics, 2022
The present article discusses the issue of population mean estimation in the ranked set sampling framework. A modified class of estimators is proffered and compared in the aspect of its efficacious performance with all salient conventional estimators ...
Shashi Bhushan   +4 more
doaj   +4 more sources

A simulation study: An enhanced generalized class of estimators for estimation of population proportion using twofold auxiliary attribute [PDF]

open access: yesHeliyon, 2023
The article introduces a novel class of estimators designed for estimating finite population proportions. These estimators utilize dual auxiliary attributes and are applicable under simple random sampling.
Sohaib Ahmad   +6 more
doaj   +2 more sources

A novel proposed class of estimators under ranked set sampling: Simulation and diverse applications [PDF]

open access: yesHeliyon, 2023
This study presents a novel enhanced exponential class of estimators for population mean under RSS by employing data on an auxiliary variable. The suggested estimators' mean square error (MSE) is calculated approximately at order one.
M. Yusuf   +4 more
doaj   +2 more sources

New generalized class of estimators for estimation of finite population mean based on probability proportional to size sampling using two auxiliary variables: A simulation study [PDF]

open access: yesScience Progress, 2023
This article aims to suggest a new generalized class of estimators based on probability proportional to size sampling using two auxiliary variables. The numerical expressions for the bias and mean squared error (MSE) are derived up to the first order of ...
Sohaib Ahmad   +4 more
doaj   +2 more sources

A new improved generalized class of estimators for population distribution function using auxiliary variable under simple random sampling [PDF]

open access: yesScientific Reports, 2023
This article aims to suggest a new improved generalized class of estimators for finite population distribution function of the study and the auxiliary variables as well as mean of the usual auxiliary variable under simple random sampling.
Sohaib Ahmad   +6 more
doaj   +2 more sources

An Efficient Class of Estimators in Stratified Random Sampling with an Application to Real Data

open access: yesAxioms, 2023
This research article addresses an efficient separate and combined class of estimators for the population mean estimation based on stratified random sampling (StRS).
Shashi Bhushan   +4 more
doaj   +3 more sources

A Class of Estimators for Estimating the Variance of the Ratio Estimator

open access: yesJournal of the Japan Statistical Society, 2004
Summary: We have proposed a class of estimators for the variance of the ratio estimator which includes two standard estimators \(V_0\), \(V_2\) and the estimators \(V_H\) and \(V_3\) suggested by \textit{R. M. Royall} and \textit{K. R. Eberhardt} [Sankya, Ser. C 37, 43--52 (1975; Zbl 0335.62007)] and \textit{C. F.
Lakshmi N Upadhyaya, Sarjinder Singh
exaly   +4 more sources

Variance estimation under an efficient class of estimators in simple random sampling

open access: yesAin Shams Engineering Journal, 2023
This study acquaints an efficient class of estimators for variance estimation in simple random sampling. Some existing prominent estimators are established to be the particular cases of the suggested estimators.
Shashi Bhushan   +3 more
doaj   +3 more sources

A class of weighted Hill estimators

open access: yesComputational and Mathematical Methods, 2021
In Statistics of Extremes, the estimation of the extreme value index is an essential requirement for further tail inference. In this work, we deal with the estimation of a strictly positive extreme value index from a model with a Pareto-type right tail.
Frederico Caeiro   +2 more
openaire   +2 more sources

A modified generalized class of exponential ratio type estimators in ranked set sampling

open access: yesScientific African, 2023
: Background: Researchers consider ranked set sampling (RSS) as an alternative to simple random sampling (SRS) for data collection because studies have shown that it is more efficient and less biased.
Abayomi Olumuyiwa Ajayi   +3 more
doaj   +1 more source

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