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    confidence interval for the proportion difference

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    A Pew research study recently randomly selected two groups of people, men and women and asked them if they agree with the following statement: "It s morally wrong for a married person to have an affair" Among 386 women, and 347 agreed with the statement. Among 359 men surveyed, 305 agreed with the statement.

    Construct a 95% confidence interval for the difference between two proportions.
    a) Label all of the variables
    b) Write out the margin of error (E) with all variables identified
    c) Calculate E
    d) Correctly state the 95% confidence interval

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    Solution Preview

    1) the variables in this question is proportion of women who agree with the statement and proportion of men who agree with the statement.
    2) ...

    Solution Summary

    The solution provides steps how to find out the confidence interval for the proportion difference.