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    p1=p2 test statistic question




    Hi
    I am now studying for my final which is tomorrow and i am doing some reviews

    how do i do this problem

    compute the test statistic used to test the null hypothesis that p1=p2
    a report on the nightly news broadcast stated that 13 out of 111 households with pet dogs were burglarized and 23 out of 190 without pet dogs were burglarized.

    the answer is -0.102

    this question i don't know where to begin, if anyone can help.

  2. #2
    Dark Knight
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    hint: Two sample proportion test

    calculate p1^ and p2^

    http://www.ams.sunysb.edu/~hahn/course/minitab/proportion/proportion.html


    When Two-proportion z-test, equal variances
    Test Statistic


    When Two-proportion z-test, unequal variances
    with
    In the long run, we're all dead.

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    still a little lost

    HI

    I have the ti 84 calculator , i checked the website. but not sure what i put in for p1 or p2

    is n1 111 and n2 190?

    is p1 13 and the other p2 23?

    with that i got 5.91516

    i think i am doing it wrong


    can you show me where i am doing wrong.

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    Dark Knight
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    p is the proportion.

    p1 =13/111 and p2 =23/190

    You can easily calculate the test statistic manually.

    http://cfcc.edu/faculty/cmoore/TI83ZTest.htm
    In the long run, we're all dead.

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    thank you so much


    HI

    Thanks so much for all your help. I took finished my final. I hope I did ok but there were some questions I couldn't answer. I do appreciate all the website you posted and your help. You have been very helpful.


    Thank you very much.

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