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Rema / volumen 4
 POSDEM: Un software para optimizar la selección y estimación en el diseño de encuestas por muestreo
Gonzalo Sánchez-Crespo Benitez 
Alberto Lezcano Lastra 
 POSDEM application has been designed to optimize the sampling selection. For several sampling methods, this software, allows to answer questions like: what selection procedure is it better for a specific population frame?; and the sampling size related with a significance level?; what is the mean square error?; what are the units that must be investigated? The help files could be used like a book of sampling techniques. An illustration with a student population has been prepared with the purpose to show the possibilities of this software.
 
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