Almost unbiased ratio and product-type estimators in systematic sampling
- Autores: R. Singh, H.P. Singh
- Localización: Questiió: Quaderns d'Estadística, Sistemes, Informatica i Investigació Operativa, ISSN 0210-8054, Vol. 22, Nº. 3, 1998, págs. 403-416
- Idioma: inglés
- Títulos paralelos:
- Estimadores de razón casi insesgada y de tipo producto en muestreos sistemáticos
- Enlaces
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Resumen
In this paper we have suggested almost unbiased ratio-type and product-type estimators for estimating the population mean Y of the study variate y using information on an auxiliary variate x in systematic sampling. The variance expressions of the suggested estimators have been obtained and compared with usual unbiased estimator y*, Swain's (1964) ratio estimator y*R and Shukla's product estimator y*p. It has been shown that the proposed estimators are more efficient than usual unbiased estimator y*, ratio estimator y*R and product estimator y*p. An empirical study is carried out to demonstrate the superioriy of the constructed estimators over the estimators y*, y*R and y*p
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