Question

In: Statistics and Probability

5. In a 2011 National Institute on Alcohol Abuse and Alcoholism survey, 33% of American adults...

5. In a 2011 National Institute on Alcohol Abuse and Alcoholism survey, 33% of American adults said that they had never consumed alcohol. Suppose that this result is true for the 2011 population of American adults. In a recent random sample of 2300 adult Americans, 35% said that they had never consumed alcohol. Test the hypothesis that the current percentage of American adults who have never consumed alcohol is different from 33%. What is your conclusion if the significance level is 5%?

Solutions

Expert Solution

Let P: Population proportion of American adults who had never consumed the alcohol

Conclusion: There is sufficient evidence to conclude that the current percentage of American adults who never consumed alcohol is different than 0.33 at 5% level of significance.

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orchestra answered 3 years ago
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