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The South Pacific Journal of Natural and Applied Sciences The South Pacific Journal of Natural and Applied Sciences Society
Research and review papers in the area of science, engineering and mathematics
RESEARCH ARTICLE

Modified ratio estimators of population mean using linear combination of co-efficient of skewness and quartile deviation

M. Iqbal Jeelani and S. Maqbool

The South Pacific Journal of Natural and Applied Sciences 31(1) 39 - 44
Published: 08 January 2014

Abstract

The present paper deals with the estimation of population mean of the study variable using the linear combination of known population values of coefficient of skewness and quartile deviation of auxiliary variable. Two modified ratio estimators for estimation of population mean of the study variable involving the above linear combinations are being used. Mean squared errors and biases up to the first degree of approximation are derived and compared with the proposed modified ratio estimators. The proposed modified ratio estimators perform better than the existing ratio estimators. The empirical study has been carried out in support of the results.

https://doi.org/10.1071/SP13003

© The University of the South Pacific 2014

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