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Calcula el tamao de muestra que nos permita tener una certeza del 90% de que estamos estimando la proporcin verdadera de la poblacin de 40,000

Calcula el tamao de muestra que nos permita tener una certeza del 90% de que estamos estimando la proporcin verdadera de la poblacin de 40,000 estudiantes que estn a favor de un nuevo sistema de evaluacin, con un error mximo admisible de 0.02.

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