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Se pretende probar la hiptesis de que el promedio de gastos anuales en hipotecas de casas compradas en Puerto Rico es de $14,000. Luego de

Se pretende probar la hiptesis de que el promedio de gastos anuales en hipotecas de casas compradas en Puerto Rico es de $14,000. Luego de hacer una encuesta con 60 familias con hogar se encontr que el promedio de la muestra fue de $16,000 y la desviacin estndar de la muestra $3,000. Si se desea obtener un 95% de nivel de confiabilidad en la prueba, determina lo siguiente:

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