Results 11 to 20 of about 259,705 (143)

National health surveys: overview of sampling techniques and data collected using complex designs [PDF]

open access: yesEpidemiologia e Serviços de Saúde, 2023
This article aimed to present an overview of national health surveys, sampling techniques, and components of statistical analysis of data collected using complex sampling designs.
Célia Landmann Szwarcwald
doaj   +1 more source

Two-stage sampling for better survival model performance [PDF]

open access: yesBMC Medical Research Methodology
Background With the emergence of high-dimensional censored survival data in health and medicine, the use of survival models for risk prediction is increasing.
Yunwei Zhang, Samuel Muller
doaj   +2 more sources

Scrambling Reports: New Estimators for Estimating the Population Mean of Sensitive Variables

open access: yesMathematics, 2023
Warner proposed a methodology called randomized response techniques, which, through the random scrambling of sensitive variables, allows the non-response rate to be reduced and the response bias to be diminished. In this document, we present a randomized
Pablo O. Juárez-Moreno   +3 more
doaj   +1 more source

Determination of Sample Size and Observation Units

open access: yesInternational Journal of Assessment Tools in Education, 2019
The purpose of this study was to write programsto define sampling sizes and observation units by probability sampling methodsand to provide an idea for software developers. Thealgorithms of the programs were written in Python 3.
Tülin Acar
doaj   +1 more source

On conditional simple random sample [PDF]

open access: yesStatistics in Transition new series, 2014
Estimation of the population average in a finite and fixed population on the basis of the conditional simple random sampling design dependent on order statistics of the auxiliary variable is studied. The sampling scheme implementing the sampling design is proposed. The inclusion probabilities are derived. The well known Horvitz-Thompson statistic under
openaire   +1 more source

About the benefits of poststratification in forest inventories

open access: yesJournal of Forest Science, 2007
A large virtual population is created based on the GIS data base of a forest district and inventory data. It serves as a population where large scale inventories with systematic and simple random poststratified estimators can be simulated and the gains ...
J. Saborowski, J. Cancino
doaj   +1 more source

Pengaruh Pengetahuan dan Sikap Orang Tua terhadap Motivasi untuk Melengkapi Imunisasi Lanjutan

open access: yesCitra Delima, 2019
Banyak faktor yang mempengaruhi rendahnya angka bayi dan balita yang berstatus imunisasi lengkap, antara lain sikap dan pengetahuan orang tua. Melalui penelitian ini diharapkan karakteristik orang tua dan karakteristik anak dapar teridentifikasi, selain ...
Zaiful Rahman   +2 more
doaj   +1 more source

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   +1 more source

New Ratio Estimators in Simple Random Sampling Using (K) Factor [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2010
In this research we find alternative ratio estimators to the suggested estimators for [Sesodia and Dwivedi] , [Singh and Kakran] and [Upadhyaya and Singh] , in simple random sampling by using (K) factor.
doaj   +1 more source

Estimators in simple random sampling: Searls approach [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2013
This paper investigates four new estimators in simple random sampling: biased sample mean, ratio estimator and two linear regression estimators, using known coefficients of variation of the study variable and auxiliary variable. The properties of the new
Jirawan Jitthavech   +1 more
doaj  

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