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    • Thread Starter

    We've been given a set of poll data and asked to do a classical hypothesis test. Basically me and a friend disagree on the method. I have done it

    Ho: mean=0.5
    Ha: mean =/= 0.5

    I did it this way


    My friend has found the standard deviation of the data and done

    1.53-0.5/std dev

    who is right and why

    If 1.53 is the value of a sample mean then the first way is more appropriate, since you have used the distribution of the sample mean to standardise.
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