T. A. Raja

Robust Estimators for Estimation of Population Variance Using Linear Combination of Downton’s Method and Deciles as Auxiliary Information

M. A. Bhat, T. A. Raja, S. Maqbool, N. A. Sofi, Ab. Rauf, S. H. Baba & Immad. A. Shah · Advances in Research · 2018

We have suggested improved and robust estimators for the estimation of finite population variance using non-conventional population parameters as auxiliary variables to enhance the efficiency of proposed estimators. A comparison between suggested estimators and existing estimator...

Open access Research Article 10.9734/AIR/2018/41956

Modified Variance Estimators for Non Response Problems in Survey Sampling

M. A. Bhat, T. A. Raja, S. Maqbool, S. A. Mir & Nageena Nazeer · Advances in Research · 2018

In this present study, we have discussed the issue of presence and absence of non-response that we often face in survey estimation. We have suggested the estimators to estimate the finite population Variance in the absence and presence of non-response, using the linear combinatio...

Open access Research Article 10.9734/AIR/2018/39643