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    Hypothesis

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    A Baker says they can make a cake in 60 minutes from scratch, which I do not think he can.

    After watching them 18 times I come up with the Mean time of 65.37 minutes with a standard deviation of 8.2 minutes

    Using the Student's t Distribution because I have a small sample,
    I'll let my null hypothesis be:

    Ho: m = 60 and since I want to prove that his mean time is greater than the 60 minutes,
    I'll set up my alternate hypothesis like this:
    H1: µ > 60
    If I find my sample "test statistic" and then test it against the critical value, I can determine, once and for all whether I can safely reject the bakers's claim.
    I think that an alpha of 0.05 should be adequate.
    --------------------------------------------

    Input the key figures then indicate whether or not to reject Ho.
    1. tc =
    2. t =
    3. Reject or Fail to reject Ho.

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    https://brainmass.com/statistics/hypothesis-testing/hypothesis-4993

    Solution Preview

    In this case, N=18, Sd=8.2, M=65.37
    <br>So df=N-1=17 and ...

    Solution Summary

    A Baker says they can make a cake in 60 minutes from scratch, which I do not think he can.

    After watching them 18 times I come up with the Mean time of 65.37 minutes with a standard deviation of 8.2 minutes

    Using the Student's t Distribution because I have a small sample,
    I'll let my null hypothesis be:

    Ho: m = 60 and since I want to prove that his mean time is greater than the 60 minutes,
    I'll set up my alternate hypothesis like this:
    H1: µ > 60

    --------------------------------------------

    Input the key figures then indicate whether or not to reject Ho.
    1. tc =
    2. t =
    3. Reject or Fail to reject Ho.

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