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Exam (elaborations)

University of Virginia. ACCT MISC, este

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University of Virginia, este, ACCT MISC

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May 12, 2025
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Calcule la desviación estándar y señale cuál de las 2 máquinas es más precisa y cuál de las 2 es

más exacta. Si utilizamos la desviación como método de medición para la precisión, podemos
deducir que la máquina numero2 (esta obtiene 3 de 20) es menos precisa que la máquina
1(obtiene 5 de 20) ya que su desviación es mayor respecto del promedio de la propia muestra de
la máquina, llegando a la determinación que la máquina 1 es mas exacta.

Para completar el ejercicio y que este realmete este bueno, lo podemos comprobar con el
siguiente criterio:




Para el caso máquina 1: exactitud = 0,9920 -1 = +-0,0080

Para el caso de máquina 2: exactitud = 0,9910-1 = +-0,0090

En este caso podemos corroborar que la máquina 1 es la más exacta, ya que su valor es menor,

respecto de la diferencia que existe con el valor real. (Ejercicio en la siguiente página)




This study source was downloaded by 100000898495062 from CourseHero.com on 05-12-2025 10:37:13 GMT -05:00


https://www.coursehero.com/file/241392919/estedocx/

, 2) A usted, como encargado del Departamento de Control de Calidad de una empresa de

producción de lápiz grafito, se le ha encomendado determinar ciertos errores y aspectos

asociados a las mediciones realizadas en la producción final del lápiz. Para esto, se le

suministran algunos datos de la producción, presentados como las longitudes de lápices:




This study source was downloaded by 100000898495062 from CourseHero.com on 05-12-2025 10:37:13 GMT -05:00


https://www.coursehero.com/file/241392919/estedocx/
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