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Math Help - statistics

  1. #1
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    statistics

    Twenty-five students were randomly selected from each of three colleges in a particular region and were asked to report on the amount of time they spent socializing each day with other students. The results for College X was a mean of 5 hours and an estimated population variance of 2 hours; for College Y, M = 4, S2 = 1.5; and for College Z, M = 6, S2 = 2.5. What should you conclude? Use the .05 level.
    (a) Use the steps of hypothesis testing
    (b) Figure the effect size for the study;
    (c) Explain your answers to (a) and (b) to someone who has never had a course in statistics.
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by harry View Post
    Twenty-five students were randomly selected from each of three colleges in a particular region and were asked to report on the amount of time they spent socializing each day with other students. The results for College X was a mean of 5 hours and an estimated population variance of 2 hours; for College Y, M = 4, S2 = 1.5; and for College Z, M = 6, S2 = 2.5. What should you conclude? Use the .05 level.
    (a) Use the steps of hypothesis testing
    (b) Figure the effect size for the study;
    (c) Explain your answers to (a) and (b) to someone who has never had a course in statistics.
    First sort out if you are quoting standard deviations or variances.

    RonL

    I supect that (c) cannot be done without providing at least the equivalent of the first
    four lectures of a first course in statistics.
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