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Alex se pregunta si en Estados Unidos y Canad existe la misma proporcin de personas zurdas. l quiere obtener una muestra aleatoria de personas de

Alex se pregunta si en Estados Unidos y Canad existe la misma proporcin de personas zurdas. l quiere obtener una muestra aleatoria de personas de cada pas y probar si hay una diferencia significativa entre la proporcin de personas zurdas en cada pas

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