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Los pesos de 25 paquetes enviados a travs de United Parcel Service (UPS) tuvieron una media de 3.8 libras. Suponiendo que los pesos de los

Los pesos de 25 paquetes enviados a travs de United Parcel Service (UPS) tuvieron una media de 3.8 libras. Suponiendo que los pesos de los paquetes enviados por UPS estn distribuidos normalmente con una desviacin estndar de 1.2 libras pruebe que los paquetes enviados por UPS pesan en promedio 4 libras. Utilice el valor_p para sus conclusiones.

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