Resumen
Páginas: 3 (609 palabras)
Publicado: 20 de julio de 2012
Frecuencias
En una gasolinera quieren saber cuántos empleados más deben contratar y para qué turnos, para ello, registraron durante dos días la cantidad de litros de diesel que se vende por horaen la gasolinera, el registro que obtuvieron fue el siguiente:
816 810 856 888 833 839 853 837 881 873 889 836 815 860 830 888 830844 830 831 840 844 840 858 810 888 883 835 884 849 856 888 833869 835 835 884 849 844 840 858 853 837 881 873 889 836 815
Recorrido
Formula
Re = máx[pic]- min[pic]
Sustituyendo valores:
Re = 889 – 810 = 79
Re = 79
Varianza
Formula[pic]
Calculamos la media
[pic]= [pic]= 850.93
µ= 850.93
Sustituyendo valores:
[pic](816-850.93)² + (810-850.93)² + (856-850.93)² + (888-850.93)² + (833-850.93)² + (839-850.93)² +(853-850.93)² + (837-850.93)² + (881-850.93)² + (873-850.93)² + (889-850.93)² + (836-850.93)² + (815-850.93)² + (860-850.93)² + (830-850.93)² + (888-850.93)² + (830-850.93)² + (844-850.93)² +(830-850.93)² + (831-850.93)² + (840-850.93)² + (844-850.93)² + (840-850.93)² + (858-850.93)² + (810-850.93)² + (888-850.93)² + (883-850.93)² + (835-850.93)² + (884-850.93)² + (849-850.93)² + (856-850.93)² +(888-850.93)² + (833-850.93)² + (869-850.93)² + (835-850.93)² + (835-850.93)² + (884-850.93)² + (849-850.93)² + (844-850.93)² + (840-850.93)² + (858-850.93)² + (853-850.93)² + (837-850.93)² +(881-850.93)² + (873-850.93)² + (889-850.93)² + (836-850.93)² + (815-850.93)²/48
= (-34.93)² + (-40.93)² + (5.07)² + (37.07)² + (-17.93)² + (-11.93)² + (2.07)² + (-13.93)² + (30.07)² + (22.07)² + (38.07)²+ (-14.93)² + (-35.93)² + (9.07)² + (-20.93)² + (37.07)² + (-20.93)² + (-6.93)² + (-20.93)² + (-19.93)² + (-10.93)² + (-6.93)² + (-10.93)² + (7.07)² + (-40.93)² + (37.07)² + (32.07)² + (-15.93)² +(33-07)² + (-1.93)² + (5.07)² + (37.07)² + (-17.93)² + (18.07)² + (-15.93)² + (-15.93)² +(33.07)² + (-1.93)² + (-6-93)² + (-10.93)² +(7.07)² +(2.07)² +(-13.93)² +(30.07)² +(22.07)² +(38.07)² +...
En una gasolinera quieren saber cuántos empleados más deben contratar y para qué turnos, para ello, registraron durante dos días la cantidad de litros de diesel que se vende por horaen la gasolinera, el registro que obtuvieron fue el siguiente:
816 810 856 888 833 839 853 837 881 873 889 836 815 860 830 888 830844 830 831 840 844 840 858 810 888 883 835 884 849 856 888 833869 835 835 884 849 844 840 858 853 837 881 873 889 836 815
Recorrido
Formula
Re = máx[pic]- min[pic]
Sustituyendo valores:
Re = 889 – 810 = 79
Re = 79
Varianza
Formula[pic]
Calculamos la media
[pic]= [pic]= 850.93
µ= 850.93
Sustituyendo valores:
[pic](816-850.93)² + (810-850.93)² + (856-850.93)² + (888-850.93)² + (833-850.93)² + (839-850.93)² +(853-850.93)² + (837-850.93)² + (881-850.93)² + (873-850.93)² + (889-850.93)² + (836-850.93)² + (815-850.93)² + (860-850.93)² + (830-850.93)² + (888-850.93)² + (830-850.93)² + (844-850.93)² +(830-850.93)² + (831-850.93)² + (840-850.93)² + (844-850.93)² + (840-850.93)² + (858-850.93)² + (810-850.93)² + (888-850.93)² + (883-850.93)² + (835-850.93)² + (884-850.93)² + (849-850.93)² + (856-850.93)² +(888-850.93)² + (833-850.93)² + (869-850.93)² + (835-850.93)² + (835-850.93)² + (884-850.93)² + (849-850.93)² + (844-850.93)² + (840-850.93)² + (858-850.93)² + (853-850.93)² + (837-850.93)² +(881-850.93)² + (873-850.93)² + (889-850.93)² + (836-850.93)² + (815-850.93)²/48
= (-34.93)² + (-40.93)² + (5.07)² + (37.07)² + (-17.93)² + (-11.93)² + (2.07)² + (-13.93)² + (30.07)² + (22.07)² + (38.07)²+ (-14.93)² + (-35.93)² + (9.07)² + (-20.93)² + (37.07)² + (-20.93)² + (-6.93)² + (-20.93)² + (-19.93)² + (-10.93)² + (-6.93)² + (-10.93)² + (7.07)² + (-40.93)² + (37.07)² + (32.07)² + (-15.93)² +(33-07)² + (-1.93)² + (5.07)² + (37.07)² + (-17.93)² + (18.07)² + (-15.93)² + (-15.93)² +(33.07)² + (-1.93)² + (-6-93)² + (-10.93)² +(7.07)² +(2.07)² +(-13.93)² +(30.07)² +(22.07)² +(38.07)² +...
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