Results 21 to 30 of about 71,732 (244)

Study of Dual to Ratio-Cum-Product Estimator of Finite Population Mean under Double Sampling in Sample Surveys [PDF]

open access: yesJournal of Statistical Theory and Applications (JSTA), 2015
A class of estimator based on dual to ratio and dual to product-type estimator in double sampling for estimating finite population mean is proposed. The bias and mean square error of the proposed estimator are obtained in two different cases.
Sanjib Choudhury, Bhupendra Kumar Singh
doaj   +1 more source

Methods of sample adjustment. Improving the quality of survey results [PDF]

open access: yesRevista Română de Statistică, 2010
Statistical surveys, however well designed, often find that the resulting sample structure does not always reproduce the population structure accurately.In order to get more accurate estimators for the variables of interest, several methods of sample ...
Alina BARBU
doaj  

Estimation of the current population total for a four-phase sampling design

open access: yesNonlinear Analysis, 2016
The combined ratio-type estimators of the finite population total and their variances in the case of sample rotation for two-phase and four-phase sampling schemes are constructed in the paper.
Viktoras Chadyšas   +1 more
doaj   +1 more source

Optimized inferences of finite population mean using robust parameters in systematic sampling.

open access: yesPLoS ONE, 2023
In this article, we have proposed a generalized estimator for mean estimation by combining the ratio and regression methods of estimation in the presence of auxiliary information using systematic sampling.
Nazia Shaheen   +3 more
doaj   +1 more source

Efficient neutrosophic exponential estimators for accurate population mean estimation in simple random sampling [PDF]

open access: yesJournal of Fuzzy Extension and Applications
Neutrosophic statistics extend the classical statistical methods by incorporating elements of indeterminacy and provide a powerful tool for handling imprecision and uncertainty in data. The objective of this paper is to introduce the efficient neutrosophic
Anoop Kumar, Priya Priya
doaj   +1 more source

An Alternative Ratio-cum-Product Estimator of Population Mean Using a Coefficient of Kurtosis for Two Auxiliary Variates

open access: yesData Science Journal, 2010
An alternative ratio-cum-product estimator of population mean using the coefficient of kurtosis for two auxiliary variates has been proposed. The proposed estimator has been compared with a simple mean estimator, the usual ratio estimator, a product ...
Rajesh Tailor   +2 more
doaj   +1 more source

An Unbiased Estimator of Finite Population Mean Using Auxiliary Information

open access: yesJournal of Statistical Theory and Applications (JSTA), 2021
In this paper, an unbiased estimator is constructed by using a linear combination of an estimator of study variable and mean per unit estimator of an auxiliary variable under simple random sampling without replacement scheme.
B. Mahanty, G. Mishra
doaj   +1 more source

A new exponential ratio-type estimator with linear combination of two auxiliary variables. [PDF]

open access: yesPLoS ONE, 2014
In sample surveys, it is usual to make use of auxiliary information to increase the precision of estimators. We propose a new exponential ratio-type estimator of a finite population mean using linear combination of two auxiliary variables and obtain mean
Jingli Lu, Zaizai Yan, Xiuyun Peng
doaj   +1 more source

Contrastive Neural Ratio Estimation

open access: yesAdvances in Neural Information Processing Systems 35, 2022
Likelihood-to-evidence ratio estimation is usually cast as either a binary (NRE-A) or a multiclass (NRE-B) classification task. In contrast to the binary classification framework, the current formulation of the multiclass version has an intrinsic and unknown bias term, making otherwise informative diagnostics unreliable.
Benjamin Kurt Miller   +2 more
openaire   +4 more sources

Estimation of employed persons in the case of sample rotation

open access: yesLietuvos Matematikos Rinkinys, 2008
The aim of the paper – to investigate effectiveness of the ratio estimator in the labour force survey in the case of the simple random sampling with rotation.
Viktoras Chadyšas   +1 more
doaj   +1 more source

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