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This paper considers some ratio-type estimators and their properties are studied in stratified random sampling. The results are supported by an application with original data.

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This paper proposes some estimators for the population mean using the ratio estimators presented in [C. Kadilar, H. Cingi, Ratio estimators in simple random sampling, Applied Mathematics and Computation 151 (2004) 893-902] and shows that all proposed estimators are always more efficient than the ratio estimators. This result is also supported by a numerical example.

Ratio estimator, Ranked set sampling, Simple random sampling, Efficiency, 62D05,

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