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Thread: Null and alternative hypotheses

  1. #1
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    Null and alternative hypotheses




    I am stuck on this question - I was wondering if I have the answer correctly

    A revenue department is under orders to reduce the time small business owners spend filling out
    pension form ABC-5500. Previously the average time spent on the form was 5.2 hours. In order to
    test whether the time to fill out the form has been reduced, a sample of 65 small business owners
    who annually complete the form was randomly chosen, and their completion times recorded. The
    mean completion time for ABC-5500 form was 4.8 hours with a standard deviation of 2.6 hours. In
    order to test that the time to complete the form has been reduced, state the appropriate null and
    alternative hypotheses.

    A) H0: = 5.2
    Ha: > 5.2

    B) H0: > 5.2
    Ha: < 5.2

    C) H0: = 5.2
    Ha: < 5.2

    D) H0: = 5.2
    Ha: 5.2


    I came up with C has the correct answer - I hope this is right
    Thanks

  2. #2
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    C looks like right to me too.

  3. #3
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    That's not the answer It's just null and alternative hypothesis

  4. #4
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    I think so too.

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