This article addresses the problem of estimating the proportion Pi[subscript S] of the population belonging to a sensitive group using optional randomized response technique in stratified sampling based on Mangat model that has proportional and Neyman allocation and larger gain in efficiency. Numerically, it is found that the suggested model is…

In this article, we have suggested a new modified mixed randomized response (RR) model and studied its properties. It is shown that the proposed mixed RR model is always more efficient than the Kim and Warde's mixed RR model. The proposed mixed RR model has also been extended to stratified sampling. Numerical illustrations and graphical…

This proposal suggests library inventory procedures to meet the need for improved security in the California State University libraries and to preserve the integrity of the collections at the 19 campuses. There is a need for a reliable method of inventory for the collection as a whole, in order to determine significant changes in the collection…