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9.En el departamento de educacion de la UR university, los registros de los estudiantes sugieren que la poblacion estudiantil pasa un promedio 5.5 horas a

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9.En el departamento de educacion de la UR university, los registros de los estudiantes sugieren que la poblacion estudiantil pasa un promedio 5.5 horas a la semana.- Basandose en una muestra de 121 estudiantes, Healthy Lifestyles Incorporated (HLI) desea aplicar el teorema central del limite para realizar varias estimaciones. a) Calcule el error estandar de media muestral b) Cual es la probabilidad de que HLI encuentro una media muestral entre 5.0 y 6.0? c) Calcule la probabilidad de que la media muestral este entre 5.3 y 5.7 horas d) Que tan extrano seria obtener una media muestral mayor a 6.5 horas

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