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Novay_Z [31]
3 years ago
10

Does second-hand smoke increase the risk of a low birthweight? A baby is considered have low birthweight if he/she weighs less t

han 5.5 pounds at birth. According to the National Center of Health Statistics, about 7.8% of all babies born in the U.S. are categorized as low birthweight.Suspecting that the national percentage is higher than 7.8%, researchers randomly select 1200 babies whose mothers had extensive exposure to second-hand smoke during pregnancy and find that 10.4% of the sampled babies are categorized as low birth weight.Let p be the proportion of all babies in the U.S. that are categorized as "low birth weight." Give the null and alternative hypotheses for this research question.H 0 : p = 0.078H a : p ≠0.078H 0 : p = 0.078H a : p > 0.078H 0 : p = 0.104H a : p ≠0.104H 0 : μ = .078H a : μ > .078
Mathematics
1 answer:
emmainna [20.7K]3 years ago
4 0

yes it does hope this answer helps you

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