#title., Applied Statistics

1 Se toma una muestra de 81 observaciones con una desviación estándar de 5. La media de la muestra es de 40.
Determine el intervalo de de confianza de 99% para la media poblacional

2 Utilice el Apéndice B-2 para localizar el valor de t en las siguientes condiciones:

tamaño muestra nivel de confianza valor t
88 80
50 99.9
12 95
20 90
8 99
Posted Date: 9/25/2012 10:09:37 PM | Location : United States

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