✦ LIBER ✦

Approximately optimum stratification for ratio and regression methods of estimation

✍ Scribed by Med Ram Verma

Publisher: Elsevier Science
Year: 2008
Tongue: English
Weight: 181 KB
Volume: 21
Category: Article
ISSN: 0893-9659
DOI: 10.1016/j.aml.2007.03.012

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✦ Synopsis

This work considers the problem of optimum stratification for two study variables Y j ( j = 1, 2) when samples from different strata are collected by simple random sampling with a replacement scheme and the information on the auxiliary variable is used to estimate the population mean using the ratio and regression method of estimation. A cumulative cube root rule for determination of optimum strata boundaries for the ratio and regression method of estimation under compromise allocation has been proposed. A limiting expression for the trace of the variance-covariance matrix has also been suggested. The work concludes with a numerical illustration.

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