Question
10 estudiantes seleccionados al azar de un grupo tardaron 65, 55, 40, 65, 70, 30, 48, 57, 53 y 70 minutos en terminar un examen
10 estudiantes seleccionados al azar de un grupo tardaron 65, 55, 40, 65, 70, 30, 48, 57, 53 y 70 minutos en terminar un examen de estadstica para negocios. Se pretende estimar el tiempo promedio de todos los estudiantes del grupo.
Con un nivel de confianza del 95%, determina el intervalo de confianza para el tiempo promedio poblacional.
10 randomly selected students from a group will take 65, 55, 40, 65, 70, 30, 48, 57, 53, and 70 minutes to complete a business statistics exam. It is intended to estimate the average time of all the students in the group.
With a 95% confidence level, determine the confidence interval for the population mean time.
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