Mathematics, 05.10.2021 19:10 torresnoemi899

El tiempo de conexión a Internet de los alumnos de cierta universidad sigue una distribución normal con desviación típica de 15 minutos. Para estimar la media del tiempo de conexión, se quiere calcular un intervalo de confianza que tenga una amplitud menor o igual a 6 minutos, con un nivel de confianza del 95 %. Determina cuál es el tamaño mínimo de la muestra que es necesario observar. *

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El tiempo de conexión a Internet de los alumnos de cierta universidad sigue una distribución normal...

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