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Universidad Nacional de Chimborazo
Estadística
Nombre: William Granizo
Escuela: Ingeniería Industrial
Fecha: 22/04/2013
Semestre: 4to
Distribución de medias muéstrales
posibles convinaciones
nombre años
MEDIA
s-t 20 22 21
s-k 20 24 22
s-i 20 26 23
s-j 20 28 24
t-k 22 24 23
t-i 22 26 24
t-j 22 28 25
k-i 24 26 25
k-j 24 28 26
i-j 26 28 27
Ui 24
nombre años
sr. Snow 20
sra.Tolson 22
sr kraft 24
sra. Irvin 26
sr. Jones 28
U 24
N= 5
n= 2
medias
ordenadas
frecuencia
muestral
21 1
22 1
23 2
24 2
25 2
26 1
27 1
0
0.5
1
1.5
2
2.5
21 22 23 24 25 26 27
frecuencias
datos de medias muestrales n=2
Medias muestrales n=2
medias
ordenadas
frecuencia
muestral
frecuencia
poblacional
21 1 1
22 1 1
23 2 1
24 2 1
25 2 1
26 1 1
27 1 1
0
0.2
0.4
0.6
0.8
1
1.2
21 22 23 24 25 26 27
frecuencia
años
poblacion
se observa que la media poblacional de los ejecutivos empleados por la empresa es
aproximadamente igual a la media de las medias muéstrales con tamaño n=2.en la
que se verifica que este conjunto de valores se aproximan a una distribución
normal también se observa que en la grafica poblacional de los años de servicio de
estos ejecutivos oscilan en un intervalo de 20 a 28años a diferencia del grupo de
las medias muéstrales con un tamaño de n=2 estos varían en un intervalo de 21 a
27 años de servicio

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Universidad nacional de chimborazo

  • 1. Universidad Nacional de Chimborazo Estadística Nombre: William Granizo Escuela: Ingeniería Industrial Fecha: 22/04/2013 Semestre: 4to Distribución de medias muéstrales posibles convinaciones nombre años MEDIA s-t 20 22 21 s-k 20 24 22 s-i 20 26 23 s-j 20 28 24 t-k 22 24 23 t-i 22 26 24 t-j 22 28 25 k-i 24 26 25 k-j 24 28 26 i-j 26 28 27 Ui 24 nombre años sr. Snow 20 sra.Tolson 22 sr kraft 24 sra. Irvin 26 sr. Jones 28 U 24 N= 5 n= 2
  • 2. medias ordenadas frecuencia muestral 21 1 22 1 23 2 24 2 25 2 26 1 27 1 0 0.5 1 1.5 2 2.5 21 22 23 24 25 26 27 frecuencias datos de medias muestrales n=2 Medias muestrales n=2
  • 3. medias ordenadas frecuencia muestral frecuencia poblacional 21 1 1 22 1 1 23 2 1 24 2 1 25 2 1 26 1 1 27 1 1 0 0.2 0.4 0.6 0.8 1 1.2 21 22 23 24 25 26 27 frecuencia años poblacion se observa que la media poblacional de los ejecutivos empleados por la empresa es aproximadamente igual a la media de las medias muéstrales con tamaño n=2.en la que se verifica que este conjunto de valores se aproximan a una distribución normal también se observa que en la grafica poblacional de los años de servicio de estos ejecutivos oscilan en un intervalo de 20 a 28años a diferencia del grupo de las medias muéstrales con un tamaño de n=2 estos varían en un intervalo de 21 a 27 años de servicio