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Thread: Confidence Interval

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    Confidence Interval




    Hi all,

    I have a question for you that I hope one of you can answer:

    You sample 29 apples from your farm's harvest of 291 apples. The mean weight of the sample is 9.724 grams with 9.110 standard deviation. What is the probability that the mean weight of all 291 apples is below 30 grams?

    Please let me know how you got to the answer as well!

    Thank you,
    John

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    Re: Confidence Interval

    This seems like homework. How do you think you may approach this question? What have you covered in class. Hint how do standard deviations come into play with the standard normal distribution?
    Stop cowardice, ban guns!

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    Re: Confidence Interval

    Thanks for your response. I have to clarify, this question is assuming non-normal distribution!

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    Re: Confidence Interval


    Correct, with the STD almost equal to the mean.
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