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Estimation of sample size

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  • #34539

    Mohandas
    Participant

    How do we estimate the sample size for a given confidence level and standard deviation of proportions in case of a  finite population ?

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    #95308

    eric
    Participant

    Sample Size = Conf Level ^2 X(Proportion)(1-Proportion)/(0.5)^2
    Prediction Error is assumed to be 0.5
     

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    #95310

    Cone
    Participant

    It is actually the z value associated with the confidence level squared multiplied by (p*q)/(prediction error)^2, where q=(1-p)

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    #95988

    Mohandas
    Participant

    hi eric
    sorry 4 gettin back so late. but would like to know if u have some proof or some more info on the formula  given  by u
    tks
    deepa
     
     

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    #96003

    PA
    Participant

    Deepa
    See the discussion on this forum  as minimum sample size . This may help you

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    #96024

    Pai
    Participant

    Can one presume that the prediction error refers to the consumer’s risk (Beta) in choosing the sample size and that the producer’s risk (alpha) is given by 1- Confidence Level ?
     
    TIA
    Rajesh

    0
    #96028

    Rajanga Sivakumar
    Participant
Viewing 7 posts - 1 through 7 (of 7 total)

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