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    Statistics Problem: Adolescents and Friends of a Different Race

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    A subsample of the 2008 MTF survey suggests that black adolescents are more accepting of having friends of a different race than white adolescents. Of the 184 black adolescents who answered the question about race and friendship, 44% reported that having friends of a different race is "desirable." However, of the 867 white adolescents who answered the question about race and friendship, only 39% reported that having friends of a different race is "desirable."

    a. Calculate the 95% confidence interval for each proportion reported.
    b. Write a summary based on your calculation suggesting at least two reasons for the observed difference.

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    https://brainmass.com/statistics/confidence-interval/statistics-adolescents-friends-different-race-508201

    Solution Preview

    The critical value for 95% confidence interval is 1.96
    a. For the first group, p = 0.44
    Margin of error = 1.96*sqrt(0.44*(1-0.44)/184) = 0.072
    The upper limit: 0.44+0.072 = ...

    Solution Summary

    This solution provides steps to calculate the 95% confidence interval and writes a summary on the calculation.

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