Business, 29.04.2021 15:20 bri9263

La U. S. Bureau of Labor Statistics informa que el gasto promedio anual en alimentos y bebidas de una familia es $5700 (Money, diciembre de 2003). Suponga que los gastos anuales en alimentos y bebidas están distribuidos en forma normal y que la desviación estándar es $1500. A. ¿Cuál es el intervalo en que se encuentran los gastos de 10% de las familias que tienen los menores gastos anuales en alimentos y bebidas? B. ¿Qué porcentaje de las familias gasta más de $7000 anualmente en alimentos y bebidas? C. ¿Cuál es el intervalo en el que se encuentran los gastos de 5% de las familias que tienen los gastos más altos en alimentos y bebidas?

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La U. S. Bureau of Labor Statistics informa que el gasto promedio anual en alimentos y bebidas de un...

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