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...
Open access
Research Article10.9734/air/2020/v21i930235
In this study we have introduced a new reliable and robust ratio estimator for estimating the population variance by utilizing the auxiliary information as Gini’s mean difference. Efficiency conditions along with bias and mean square error has been worked out through a numerical...
Open access
Research Article10.9734/JSRR/2018/41962
In this study new improved robust estimator has been proposed for precise estimation of finite population variance in simple random sampling by incorporating as auxiliary information of probability weighted moment. Properties associated with proposed estimators are assessed by me...
Open access
Research Article10.9734/AJAEES/2018/41961
In the present study, we have utilized the tool of modification technique for the precision and improvement of estimators to estimate the finite population variance, when the survey under investigation does not account for some of the important conditional distribution properties...
Open access
Research Article10.9734/JSRR/2018/40222
By adapting the scheme of modification technique, we have developed some new ratio type variance estimators to estimate the finite population variance for skewed populations under survey. We have also derived the functions of efficiency to intensify the quality of efficacy of new...
Open access
Research Article10.9734/JSRR/2018/40116
In this present study, we have introduced a new type of ratio estimators for the estimation of finite population variance using standard deviation and deciles as auxiliary variables to improve the efficiency of proposed estimators. A comparison between suggested estimators and ex...
Open access
Research Article10.9734/CJAST/2017/37323
M. A. Bhat, S. Maqbool, S. A. Saraf, Ab. Rouf & S. H. Malik·Advances in Research·2018
In this paper we have suggested Modified ratio type variance estimators where in our aim is to estimate the population variance in the presence of outliers, when there is strong correlation between auxiliary variable and study variable by using, the linear combination of skewness...
Open access
Research Article10.9734/AIR/2018/37321
The present study was carried out in four blocks, viz., Ganderbal, Sherpathri, Lar and Kangan of district Ganderbal of the Kashmir valley owing to the majority of wicker willow cultivators and handicraft makers in these blocks of the district. A total number of 120 respondents, i...
Open access
Research Article10.9734/ajaees/2020/v38i730368
In the present study we have suggested a newly modified ratio estimator for estimating the population variance by utilizing the auxiliary information of Downton's method. Properties associated with proposed estimators are assessed by mean square error and bias through numerical d...
Open access
Research Article10.9734/AJAEES/2018/41963
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 Article10.9734/AIR/2018/41956
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 Article10.9734/AIR/2018/39643