Ameliorated Ratio Estimator of Population Mean Using New Linear Combination
T. A. Raja
Division of Agricultural Statistics and Economics, FoA, SKUAST-K, Wadura, Sopore, India.
S. Maqbool
Division of AGB, FVSC & AH, SKUAST-K, Shuhama, India.
*Author to whom correspondence should be addressed.
Abstract
We propose a new modified ratio estimator of population mean of the main variable using the linear combination of known values of Co-efficient of Kurtosis and Tri-Mean of the auxiliary variable. Mean Square Error (MSE) and bias of the proposed estimator is calculated and compared with the existing estimator. The comparison is demonstrated numerically which shows that the proposed estimator performs better than the existing estimators.
Keywords: Estimator, simple random sampling, auxiliary variable, mean square error, bias, co-efficient of Kurtosis, tri-mean