Margen de error
Examples
- Encontrando el margen de error
Una muestra de tamaño n=750 es obtenida de una población. La muestra tiene un valor crítico de Z2α=1.75 con un punto estimado de p^=0.44. ¿Cuál es el margen de error si estimamos la proporción de la población? - Una montaña de esquiadores tiene 25,000 visitantes al día. La compañía que maneja el centro turístico desea estimar el número de snowboarders que visitan la montaña diariamente, por lo tanto, encuestan a 100 personas que visitan la montaña y encuentran que 43 de estas personas son snowboarders. Si la compañía desea un nivel de confianza de 0.90 en sus cálculos, ¿cuál es el margen de error en este caso?
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