Math Solutions

[Steps Shown] A survey of 200 ninth-graders found that 31.5% had used cigarettes in the past week, and a survey of 250 high-school seniors found that 35.2% had

Question: A survey of 200 ninth-graders found that 31.5% had used cigarettes in the past week, and a survey of 250 high-school seniors found that 35.2% had used cigarettes in the past week. Is there significant difference between the two corresponding population proportions?

  1. State the hypotheses.
    (b) Using a 5% significance level, determine the rejection and non-rejection regions.
    (c) Calculate the test statistic, and interpret the result.
    (d) Calculate the p-value, and interpret the result.
    (e) Construct a 95% confidence interval for the difference between the two proportions, and answer the original research question.
    Price: $2.99
    Solution: The downloadable solution consists of 2 pages
    Deliverable: Word Document


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