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Thread: Interpreting R results proportions test

  1. #1

    Interpreting R results proportions test



    I hope someone can help me. I'm really bad at statistics and the funny thing is that I'm a researcher so I have to understand them. My problem is that I never know how to interpret the results. This is what R software gives me:

    2-sample test for equality of proportions with continuity correction

    data: c(21, 239) out of c(36, 882)
    X-squared = 15.1204, df = 1, p-value = 1
    alternative hypothesis: less
    95 percent confidence interval:
    -1.0000000 0.4641915
    sample estimates:
    prop 1 prop 2
    0.5833333 0.2709751

    Now, my stats guy here told (and I rather not ask him again the same thing) that if my p-value was anywhere above 0.05 I should accept the null hypothesis and accept the alternative hypothesis. So if I get p-value = 1, according to my own alternative hypothesis, would that mean that there are no significant differences between my two samples? Let me know, because I intuitively expected quite the opposite.

    Thanks a lot for any help.

  2. #2
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    I'm not sure what's so funny about a "researcher" knowing nothing about statistics....


    What were the sample sizes for each proportion?

    So, proportion 1 was approx 0.583 and proportion 2 was 0.271?

    What does this mean?
    data: c(21, 239) out of c(36, 882)

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