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International Conference on Statistics, Combinatorics and Related Areas and the Eighth International Conference of Forum for Interdisciplinary Mathematics
December 19-21, 2001
School of Mathematics and Applied Statistics, University of Wollongong
Wollongong, NSW, Australia

Organizers
Satya N. Mishra (University of South Alabama), Chandra M. Gulati (University of Wollongong)

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Distribution of Mean under Stratified Sampling from Rectangular Population
by
Anchala Kumari
Patna University, Patna ,India

Sampling Distribution Of Statistics assumes that sampling is simple and random. This assumption facilitates that all units are identical and have identical distribution function The independence of units simplifies the application of probability theory ,whie, the identical form of distribution fnction for the sampling units reduces the joint distribution to an elegant form.

Simple random sampling is , however not always suitable.the various sampling techniques do exist for improving the precision of an estimator of the population characteristics.Stratified sampling is one of the powerful technique ,frequently used to reduce the variance of some estimator of its mean.In this paper an attempt has been made to obtain the distribution of mean under stratified sampling for rectangular population and to study the fundamental properties of the distribution. The gain in precision due to stratification has also been obtained.

Date received: September 14, 2001

Copyright © 2001 by the author(s). The author(s) of this document and the organizers of the conference have granted their consent to include this abstract in Atlas Conferences Inc. Document # caid-13.