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1.Un investigador mdico estaba estudiando el peso de los nios y nias al nacer. Se seleccion una muestra aleatoria de cinco nios y seis nias,

1.Un investigador mdico estaba estudiando el peso de los nios y nias al nacer. Se seleccion una muestra aleatoria de cinco nios y seis nias, entre todos los bebes nacidos en el Hospital el ao anterior. El peso al nacer (en libras) de los bebes fue el siguiente:

Nios5.3 2.8 6.4 6.8 7.4 6.1 6.5 7.2 6.6 6.3 7.0

Nias8.0 4.7 7.3 6.2 3.4 5.5 7.8 4.8 7.1 6.0 3.6 5.6

a) Con un nivel de confianza de 98.0% de confianza. Hay diferencia en el peso al nacer de los nios y las nias nacidas en ese hospital en el ao anterior?

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