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Se toma una muestra de 49 observaciones de una poblacin normal con una desviacin estndar de 10. La media de la muestra es de 55.

  1. Se toma una muestra de 49 observaciones de una poblacin normal con una desviacin estndar de 10. La media de la muestra es de 55. Determine el intervalo de confianza de 99% de la media poblacional.

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