Results 11 to 20 of about 468,328 (281)

A simulation study: new optimal estimators for population mean by using dual auxiliary information in stratified random sampling

open access: yesJournal of Taibah University for Science, 2020
Recently, Haq et al. [A new estimator of finite population mean based on the dual use of the auxiliary information. Commun Stat Theory Methods. 2017;46(9):4425–4436] utilized the dual auxiliary information under simple random sampling only.
Maria Javed, Muhammad Irfan
doaj   +1 more source

Ratio estimators of population means using quartile function of auxiliary variable using double sampling [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2019
Ratio estimators have been used in survey sampling for estimating population mean when the population mean of an auxiliary variable is known. However, as the auxiliary information is not always available we cannot gain any benefit from using ratio ...
Nuanpan Lawson
doaj   +1 more source

Restructured searls family of estimators of population mean in the presence of nonresponse

open access: yesFrontiers in Applied Mathematics and Statistics, 2022
Nonresponse is a major problem encountered by surveyors when conducting sampling surveys. The present study suggested a naïve modified Searls method for the elevated estimation of the population mean of the primary variable under investigation by ...
Abdullah Ali H. Ahmadini   +3 more
doaj   +1 more source

Auxiliary Variable Based Particle Filters [PDF]

open access: yes, 2001
We model a time series {y t , t = 1, ..., n} using a state-space framework with the {y t |α t } being independent and with the state {α t } assumed to be Markovian. The task will be to use simulation to estimate f(α t |F t ), t = 1, ..., n, where F t is contemporaneously available information.
Neil Shephard, Michael K. Pitt
openaire   +2 more sources

Improved Estimators for Estimating Average Yield Using Auxiliary Variable [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2019
In this paper, we consider the improved estimation of average production of peppermint at block level of Barabanki district of Uttar Pradesh State (India). We suggest certain estimators for population-mean.
S. K. Yadav   +3 more
doaj   +1 more source

Estimation of the general population parameter in single- and two-phase sampling

open access: yesAIMS Mathematics, 2023
Estimation of population characteristics has been an area of interest for many years. Various estimators of the population mean and the population variance have been proposed from time-to-time with a view to improve efficiency of the estimates.
Saman Hanif Shahbaz   +2 more
doaj   +1 more source

Two-exponential estimators for estimating population mean

open access: yesAIMS Mathematics, 2021
We introduce two-exponential shrinkage estimator using two stage two phase sampling for estimating population mean of study variable. Some properties of the proposed two-exponential shrinkage estimator are presented.
Riffat Jabeen   +3 more
doaj   +1 more source

High-redshift cosmography: auxiliary variables versus Padé polynomials [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2020
ABSTRACT Cosmography becomes non-predictive when cosmic data span beyond the redshift limit z ≃ 1. This leads to a strong convergence issue that jeopardizes its viability. In this work, we critically compare the two main solutions of the convergence problem, i.e.
O Luongo, R D’Agostino, S Capozziello
openaire   +4 more sources

On Lossless Coding With Coded Side Information [PDF]

open access: yes, 2009
This paper considers the problem, first introduced by Ahlswede and Korner in 1975, of lossless source coding with coded side information. Specifically, let X and Y be two random variables such that X is desired losslessly at the decoder while Y serves as
Effros, Michelle, Marco, Daniel
core   +1 more source

A new exponential estimator for finite population mean under double sampling using one auxiliary variable [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2019
This paper proposes an exponential estimator of a population mean under double sampling using one auxiliary variable. The proposed estimator is modified from the estimator of Khatua and Misha (2013) and Ozgul and Cingi (2014).
Wuttichai Srisodaphol, Montip Tiensuwan
doaj   +1 more source

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