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Valores Críticos x2_IC Varianza

Desarrollo del proceso para determinar el valor de los valores críticos en la distribución x2 para intervalos de confianza para la varianza
by

Sergio Jurado

on 5 April 2016

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Transcript of Valores Críticos x2_IC Varianza

Para el intervalo de confianza para la Varianza
Valores Críticos de x2
Para calcular el valor crítico de la Izquierda:
Para calcular el valor crítico de la derecha:
Se debe ubicar el valor crítico en la tabla con:
1- a/2 y gl = n-1
Ejemplo:
Se debe ubicar el valor crítico en la tabla con:
a/2 y gl = n-1
Ejemplo:
Si a = 0.05 y n = 21
a/2 = 0.025 y gl = 20
x2 = 34.170
a = 0.05 y n = 21
1-a/2 y gl = n-1
1-0.025=
0.975
y gl =
20
x2 = 9.591
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