In 2002 a statistician named Fukuda found the following in Japan: Out of 565 births where both parents smoked more than a pack a day, 255 were boys. Out of 3602 births where both parents didn’t smoke, 1975 were boys. At ∝= 0.05, can we claim that there is a smaller propor)on of boys with parents who are smokers? Test using: a.) a hypothesis test b.) an appropriate CI

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