Estimation of Population Median under Robust Measures of an Auxiliary Variable
Author(s) -
Muhammad Irfan,
Maria Javed,
Sandile Charles Shongwe,
Muhammad Zohaib,
Sajjad Haider Bhatti
Publication year - 2021
Publication title -
mathematical problems in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.262
H-Index - 62
eISSN - 1026-7077
pISSN - 1024-123X
DOI - 10.1155/2021/4839077
Subject(s) - estimator , population mean , mean squared error , mathematics , robustness (evolution) , statistics , decile , simple random sample , population , robust statistics , variable (mathematics) , medicine , biochemistry , chemistry , gene , environmental health , mathematical analysis
In this paper, a generalized class of estimators for the estimation of population median are proposed under simple random sampling without replacement (SRSWOR) through robust measures of the auxiliary variable. Three robust measures, decile mean, Hodges–Lehmann estimator, and trimean of an auxiliary variable, are used. Mathematical properties of the proposed estimators such as bias, mean squared error (MSE), and minimum MSE are derived up to first order of approximation. We considered various real-life datasets and a simulation study to check the potentiality of the proposed estimators over the competitors. Robustness is also examined through a real dataset. Based on the fascinating results, the researchers are encouraged to use the proposed estimators for population median under SRSWOR.
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