Open Access Open Access  Restricted Access Subscription or Fee Access

Improved Estimators for Population Mean using Attributes and Auxiliary Characters under Incomplete Information

R. R. Sinha, Vinod Kumar

Abstract


In this paper, we have considered the problem of estimating the population mean under study by using the auxiliary characters under incomplete information. Some ratio, product and generalized estimators have been proposed and the problem has been extended to the classes of estimators under different cases. The expressions of bias and mean square error of the proposed estimators are obtained. Further, the conditions for attaining the minimum mean square error of the proposed classes of estimators are given along with their minimum mean square error. It has also been shown through theoretical and empirical
comparisons that the proposed classes of estimators are more efficient than the usual conventional estimators.

Keywords


bias, mean square error, auxiliary character, attribute, non-response.

Full Text:

PDF


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. Also: DOI is paid service which provided by a third party. We never mentioned that we go for this for our any journal. However, journal have no objection if author go directly for this paid DOI service.