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Some Exponential Ratio-Product Type Estimators using information on Auxiliary Attributes under Second Order Approximation

Prayas Sharma, Hemant K. Verma, Aamir Sanaullah, Rajesh Singh


Bahl and Tuteja (1991) introduced an exponential ratio–type and exponential product-type estimators for estimating population mean . Singh et al. (2007) suggested improved estimator using Bahl and Tuteja (1991) estimator. Most of them discussed these estimators along with their first order biases and mean square error’s (MSE’s). In this paper, we have tried to work out the second order biases and mean square errors of some estimators using information on auxiliary attributes based on simple random sampling. Finally, we have compared the performance of the estimators with help of some numerical illustration.


Simple Random Sampling, population mean, study variable, auxiliary attributes, exponential ratio type estimator, exponential product estimator, attributes, Bias and MSE.

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