Results 51 to 60 of about 259,705 (143)

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

Sci Rep, 2023
Ahmad S, Ullah K, Zahid E, Shabbir J, Aamir M, Alshanbari HM, El-Bagoury AAH.   +6 more
europepmc   +1 more source

Optimum estimator in simple random sampling using two auxiliary attributes with application in agriculture, fisheries and education sectors. [PDF]

MethodsX, 2022
Saini M, Jitendrakumar BR, Kumar A.
europepmc   +1 more source

Mean estimation using an efficient class of estimators based on simple random sampling: Simulation and applications

Alexandria Engineering Journal
In this article, we offer simple random sampling (SRS) based efficient class of estimators of population mean Y¯ utilizing additional information. The expression of the mean square error of the proposed class of estimators is deduced up to first degree ...
Anoop Kumar, Asra Sayeed Siddiqui, Manahil SidAhmed Mustafa, Eslam Hussam, Hassan M. Aljohani, Fatimah A. Almulhim   +5 more
doaj   +1 more source

Simulation-Based Evaluation of Robust Transformation Techniques for Median Estimation Under Simple Random Sampling

Axioms
An efficient estimator can reduce both bias and mean squared error to provide more accurate results by using the transformation strategy. In this paper, an enhanced class of ratio–product types of estimators is introduced, which employs the ...
Fatimah A. Almulhim, Abdulaziz S. Alghamdi   +1 more
doaj   +1 more source

A simulation study: Improved ratio-in-regression type variance estimator based on dual use of auxiliary variable under simple random sampling. [PDF]

PLoS One, 2022
Ahmad S, Hussain S, Ullah K, Zahid E, Aamir M, Shabbir J, Ahmad Z, Alshanbari HM, Alajlan W.   +8 more
europepmc   +1 more source

Estimation of Variance of Normal Distribution using Ranked Set Sampling

پژوهش‌های ریاضی, 2019
Introduction     In some biological, environmental or ecological studies, there are situations in which obtaining exact measurements of sample units are much harder than ranking them in a set of small size without referring to their precise values.
Narges Mahdavimanesh, Nasrollah Iranpanah, Ehsan Zamanzadeh   +2 more
doaj  

Domains of Optimality of Tests in Simple Random Sampling

The Annals of Mathematical Statistics, 1969
This paper deals with the structure of sets $\Omega$ of distributions for which a particular test is the most powerful for testing a simple hypothesis $H:f = f_0 \operatorname{vs.} K:f \varepsilon\Omega$, that is, with the domain of optimality of a test.
openaire   +2 more sources

Health related surveys: sampling weights

New Zealand Medical Student Journal
n a previous article in this statistical primer series, we introduced commonly used sampling methods in health-related surveys. They include simple random sampling, stratified random sampling, and cluster sampling.
Ari Samaranayaka, Robin Turner, Claire Cameron   +2 more
doaj   +1 more source

Log-ratio type estimation for the finite population mean under simple random sampling without replacement with theory, simulation and application. [PDF]

Sci Rep
Shakoor F, Atif M, Ali H, Alshammari AO, Himmat B, Kefi K.   +5 more
europepmc   +1 more source

On the implementation of stratified two-stage simple random sampling without replacement, with possible collapsed strata. [PDF]

MethodsX
Aubry P.
europepmc   +1 more source