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A Note on the Estimation of the Population Mean in Stratified Random Sampling Using Two Auxiliary Variables
Author(s) -
Sahoo J.,
Bala M.K.
Publication year - 2000
Publication title -
biometrical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.108
H-Index - 63
eISSN - 1521-4036
pISSN - 0323-3847
DOI - 10.1002/(sici)1521-4036(200001)42:1<87::aid-bimj87>3.0.co;2-g
Subject(s) - population mean , stratified sampling , mathematics , estimator , statistics , stratum , population , sampling (signal processing) , computer science , medicine , biology , paleontology , filter (signal processing) , computer vision , environmental health
In this paper, a two‐phase sampling estimator for a stratified population mean using two auxiliary variables x and z is considered when the stratum mean of x is unknown but that of z is known. The suggested estimator under its optimal condition is found to be more efficient than the one using only x .