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Teenage Drinking and Sexual Activity Statistics

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I. Of kids who do not drink alcohol, 137 are sexually active and 3,295 are not
ii. Of kids who sometimes drink alcohol, 78 are sexually active and 557 are not.

A. (5) Construct a 95% confidence interval for the proportion of non-drinking kids that are sexually active.
B. (5) What is the odds ratio of sexual activity for drinkers versus non-drinkers?
C. (5) Test at the alpha = 0.05 level of significance the hypothesis that the proportion of sexually active children who do not drink is different from the proportion of sexually active children that drink.

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