Enhanced estimators of population variance with the use of supplementary information in survey sampling

SA Lone, M Subzar, A Sharma - Mathematical Problems in …, 2021 - Wiley Online Library
In the present study, we propose the proficient class of estimators of the finite population
mean, while incorporating the nonconventional location and nonconventional measures of …

[PDF][PDF] The robust regression methods for estimating of finite population mean based on SRSWOR in case of outliers

M Subzar, AI Al-Omari, ARA Alanzi… - Computers, Materials & …, 2020 - academia.edu
The ordinary least square (OLS) method is commonly used in regression analysis. But in the
presence of outlier in the data, its results are unreliable. Hence, the robust regression …

[PDF][PDF] Generalized Class of Mean Estimators with Known Measures for Outliers Treatment.

IM Almanjahie, AI Al-Omari, EJ Ekpenyong… - Comput. Syst. Sci …, 2021 - researchgate.net
In estimation theory, the researchers have put their efforts to develop some estimators of
population mean which may give more precise results when adopting ordinary least squares …

Regression-in-ratio estimators in the presence of outliers based on redescendingm-estimator

A Raza, M Noor-ul-Amin… - Journal of Reliability …, 2019 - journals.riverpublishers.com
In this paper, a robust redescending M-estimator is used to construct the regression-inratio
estimators to estimate population when data contain outliers. The expression of mean …

An improved regression type mean estimator using redescending M-estimator

M Mukhtar, N Ali, U Shahzad - University of Wah Journal of Science and …, 2023 - uwjst.org.pk
In this article, a novel technique is presented for calculating the mean of a countable
population using simple random sampling (SRS) in situations where there are outliers in the …

Robust Ratio Estimation with an Application to Covid-19 Data from Louisiana

A Ahmed, M Hanif, E Oral - Journal of Advances in Mathematics …, 2023 - go7publish.com
Traditional ratio estimator loses its efficiency when there are outliers in the data or when the
error term is not normally distributed. Specifically in health-related data, many biological …

[PDF][PDF] Ratio estimator under rank set sampling scheme using huber m in case of outliers

M Subzar, CN Bouza-Herrera - Investigación …, 2021 - rev-inv-ope.pantheonsorbonne.fr
ABSTRACT Rank Set Sampling (RSS) is an alternative to simple random sampling was
proposed by McIntyre (1952): Under such sampling scheme various authors have proposed …

[PDF][PDF] Ratio Type Estimators for Estimating Population Mean by Using Some Auxiliary Information

TA Raja, S Maqbool - International Journal of Agriculture Sciences …, 2024 - researchgate.net
Auxiliary information plays an important role in survey sampling, enhancing the precision,
accuracy, and efficiency of estimating population parameters. This study focuses on the …

[PDF][PDF] A MODIFIED CLASS OF REGRESSION ESTIMATORS BY USING HUBER M ESTIMATION

ZH Wani, R Yousuf, SEH Rizvi - rev-inv-ope.pantheonsorbonne.fr
In this article we have proposed some new improved ratio estimators based on robust
regression that are robust against outliers and provide reliable results even when outliers …

[PDF][PDF] FORTHCOMING 62D05-05-21-03 A MODIFIED CLASS OF REGRESSION ESTIMATORS BY USING HUBER M ESTIMATION

ZH Wani, R Yousuf, SEH Rizvi - rev-inv-ope.pantheonsorbonne.fr
In this article we have proposed some new improved ratio estimators based on robust
regression that are robust against outliers and provide reliable results even when outliers …