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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

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

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

Dexterous Estimation of Population Mean in Survey Sampling Under Non-Response Error [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2019
In this scripture, we ponder the problem of efficient estimation of population mean of study variable utilizing information on highly correlated auxiliary variables under the presence of non-response on either of the variables.
S. K. Yadav, O. P. Yadav, D. K. Yadav
doaj   +1 more source

Use of an efficient unbiased estimator for finite population mean.

open access: yesPLoS ONE, 2022
In this study, we propose an improved unbiased estimator in estimating the finite population mean using a single auxiliary variable and rank of the auxiliary variable by adopting the Hartley-Ross procedure when some parameters of the auxiliary variable ...
Javid Shabbir, Ronald Onyango
doaj   +1 more source

Separate and Combined Ratio Estimators for the Median [PDF]

open access: yesThe Egyptian Statistical Journal, 1999
In this paper, two methods for median estimation for stratified random sample are suggested. We had suggested two median estimators for stratified sample (Hussein 1999). The position and stratified estimators suggested earlier are applicable in situation
Mounira Hussein
doaj   +1 more source

Scalar auxiliary variable approache for the surface quasi-geostrophic equation

open access: yesJournal of Algorithms & Computational Technology, 2023
We present a numerical method for approximating the two-dimensional surface quasi-geostrophic equation. We first reformulate the equation into an equivalent system by using the scalar auxiliary variable approach.
Shengtao Shi, Fangying Song
doaj   +1 more source

Modified Estimator of Finite Population Variance under Stratified Random Sampling

open access: yesEngineering Proceedings, 2023
This paper proposes a generalized estimator of finite population variance using the auxiliary information under stratified random sampling. The expressions for bias and mean square error equations of the proposed estimator up to the first degree of ...
Yahaya Zakari, Isah Muhammad
doaj   +1 more source

Estimation of Finite Population Ratio When Other Auxiliary Variables are Available in the Study

open access: yesAustrian Journal of Statistics, 2014
The estimation of the population total $t_y,$ by using one or more auxiliary variables, and the population ratio $\theta_{xy}=t_y/t_x,$ $t_x$ is the population total for the auxiliary variable $X$, for a finite population are heavily discussed in the ...
Jehad Al-Jararha, Ala' Bataineh
doaj   +1 more source

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