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frmula para hayar el tamao de la muestra a mano o excel Una variable aleatoria con una distribucin normal tiene una media desconocida y varianza

frmula para hayar el tamao de la muestra a mano o excel

Una variable aleatoria con una distribucin normal tiene una media desconocida y varianza 02=9. Encontrar el tamano de Ia muestra que se necesita para construir un intervalo de confianza de 95% para Ia media, cuya anchura total sea de 1.0.

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