Modified Ratio cum Product Estimator for Estimation of Finite Population Mean with Known Correlation Coefficient
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چکیده
In sampling theory, a wide variety of techniques is used to obtain efficient estimators for the population mean. The commonly used method to obtain the estimator for population mean is simple random sampling without replacement (SRSWOR) when there is no auxiliary variable available. There are methods that use the auxiliary information of the study characteristics. If there exists an auxiliary variable X which is correlated with the study variable Y, then a number of estimators such as ratio, product, modified ratio, modified product, regression estimators and their modifications are widely available for estimation of population mean of the study variable Y.
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