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- Cem Kadilar, Hulya Cingi
- Applied Mathematics and Computation
- 2004

This study proposes ratio estimators by adapting the estimators type ofRay and Singh [J. Ind. Stat. Assoc. 19 (1981) 147] to traditional and the other ratio-type estimators in simple random samplingâ€¦ (More)

- Cem Kadilar, Hulya Cingi
- Appl. Math. Lett.
- 2006

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 andâ€¦ (More)

- Cem Kadilar, Hulya Cingi
- Applied Mathematics and Computation
- 2006

We propose some ratio-type variance estimators using ratio estimators for the population mean in literature. We obtain mean square error (MSE) equations of proposed estimators and show that proposedâ€¦ (More)

- Ã‡agdas Hakan Aladag, Erol Egrioglu, Cem Kadilar
- Appl. Math. Lett.
- 2009

In recent years, artificial neural networks (ANNs) have been used for forecasting in time series in the literature. Although it is possible tomodel both linear and nonlinear structures in time seriesâ€¦ (More)

- Cem Kadilar, Hulya Cingi
- 2004

We propose a new ratio estimator using two auxiliary variables in simple random sampling. We obtain mean square error (MSE) equation of this estimator and theoretically show that our proposedâ€¦ (More)

This article considers the problem of estimating the population variance using auxiliary information. An improved version of Singhâ€™s exponential type ratio estimator has been proposed and itsâ€¦ (More)

- Cem Kadilar, Hulya Cingi
- Applied Mathematics and Computation
- 2005

- Subhash Kumar Yadav, Cem Kadilar
- Applied Mathematics and Computation
- 2014

We propose a two parameter ratio-product-ratio estimator for estimating a finite population variance based on simple random sampling without replacement. The bias and mean square error of theâ€¦ (More)

- Dalokay KiliÃ§, Hadi Akay, +4 authors Cem Kadilar
- Surgery Today
- 2005

Malignant pleural effusion is a common complication of primary and metastatic pleural malignancies. It is usually managed by drainage and pleurodesis, but there is no consensus as to the best methodâ€¦ (More)

We adapt robust regression to ratio-type estimators suggested by Kadilar and Cingi (Ratio estimators in simple random sampling, Applied Mathematics and Computation 151, 893â€“902, 2004) and obtain theâ€¦ (More)