Improvement in estimating the population mean in simple random sampling using information on auxiliary attribute |
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Authors: | AM Abd-Elfattah EA El-Sherpieny SM Mohamed OF Abdou |
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Institution: | Institute of Statistical Studies and Research, Cairo University, Dokki, Giza 12613, Egypt |
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Abstract: | This paper proposes some estimators for the population mean by adapting the estimator in Singh et al. (2008) 5] to the ratio estimators presented in Kadilar and Cingi 2006 2]. We obtain mean square error (MSE) equation for all proposed estimators, and show that all proposed estimators are always more efficient than ratio estimator in Naik and Gupta (1996) 3], and Singh et al. (2008) 5]. The results have been illustrated numerically by taking some empirical population considered in the literature. |
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Keywords: | Ratio-type estimator Simple random sampling Auxiliary attribute Efficiency |
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