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En un conjunto de datos se estima que el rango es 36. a)Cual es el valor planeado para la desviacin estndar poblacional? b)De que tamao

En un conjunto de datos se estima que el rango es 36.

a)Cual es el valor planeado para la desviacin estndar poblacional?

b)De que tamao deber ser la muestra para que el margen de error en un intervalo de confianza de 95% sea 3?

c)De que tamao deber ser la muestra para que el margen de error en un intervalo de confianza de 95% sea 2?

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