Open Access Open Access  Restricted Access Subscription or Fee Access

An Improved Effective Rotation Patterns Using Successive Sampling over Two-Occasions

G. N. Singh, M. Khalid


This paper presents the problems of estimations of population mean on the current occasion two-occasion successive sampling. Utilizing the two auxiliary variables (positive and negative correlation of the study variable) and readily available on first and second occasion besides on the study variable from the previous occasion, a class of the estimators has been proposed. Properties and optimum replacement strategy of the proposed estimator have been discussed. The estimator recently suggested by Singh and Homa (International Journal of Statistics and Economics, 12, 3, 26-39, 2013) is a member of the suggested class of estimators. Empirical studies are carried out to show the dominance of the suggested estimator over sample mean estimator when there is no matching, the combined estimator given in Cochran (1977, p. 346) and Singh and Homa (2013) estimator. Results have been analyzed, and recommendations are made to the survey practitioners.


Exponential type of estimator, Successive sampling, auxiliary information, mean square error, optimum replacement policy, efficiency.

Full Text:


Regarding indexing issue:

We have provided the online access of all issues & papers to the all  indexing agencies (as given on our journal home web site). It’s depend on indexing agencies when, how and what manner they can index or not. So, please neither sends any question nor expects any answer from us on the behalf of third party i.e. indexing agencies. 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.