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Un consejo universitario quiere determinar el tiempo promediode estudio que dedican los estudiantes, de primer ao, a susmaterias Extrae una muestra aleatoria de 61 alumnos

Un consejo universitario quiere determinar el tiempo promediode estudio que dedican los estudiantes, de primer ao, a susmaterias Extrae una muestra aleatoria de 61 alumnos de primerao y les preguntan horas a la semana estudian. los mediosde los datos restantes es de 20 horas, y la desviacin estndares de 6,5 horas.a)Construya un intervalo de confianza del 95% para la mediapoblacionalb). Construya un intervalo de confianza del 99% para la mediapoblacional

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