Abstract

FUQUENE P, JAIRO ALBERTO  and  BAUTISTA, JAIME LEONARDO. El diseño P.P.T. con variables categóricas para la estimación de dico-razones. Rev.Colomb.Estad. [online]. 2005, vol.28, n.1, pp.99-112. ISSN 0120-1751.

In probability proportional-to-size designs (P.P.S.) the selection probabilities that minimize the approximate variance of a totals ratio for dichotomic variables - dicho-ratio are found and their efficiency is compared with respect to S.I. design.

Keywords : Auxiliary categorical information; totals ratio estimation; dichoratio, P.P.S . design ; dichotomic variables.

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