Estimating the Mean of a Stratified Population using Two Auxiliary Variables under Double Sampling Scheme in the Presence of Non-Response
The present paper possesses some improved combined-type chain ratio and regression estimators of the population mean in stratified random sampling utilizing the information on two auxiliary variables under non-response. The estimators have been proposed under the situation where the study variable and the first auxiliary variable closely related to the study variable, are suffering from non-response and the desired knowledge about the parametric values of the first auxiliary variable is not available. Hence, the double sampling scheme is adopted by utilizing the information on another auxiliary variable closely related to first auxiliary variable but compared to it remotely related to study variable. The properties of the proposed estimators have been discussed in detail. An empirical study has also been entertained to demonstrate the theoretical results.
Disclaimer/Regarding indexing issue:
We have provided the online access of all issues and papers to the indexing agencies (as given on journal web site). It’s depend on indexing agencies when, how and what manner they can index or not. Hence, we like to inform that on the basis of earlier indexing, we can’t predict the today or future indexing policy of third party (i.e. indexing agencies) as they have right to discontinue any journal at any time without prior information to the journal. So, please neither sends any question nor expects any answer from us on the behalf of third party i.e. indexing agencies.Hence, we will not issue any certificate or letter for indexing issue. Our role is just to provide the online access to them. So we do properly this and one can visit indexing agencies website to get the authentic information.