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Thread: Calculate Sample size using calculator ?

  1. #1
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    Question Calculate Sample size using calculator ?




    Hello
    Can some one give me formula to calculate sample size using calculator or manually.


    This data I have right now:

    Population size = 500

    Confidence level = 95%

    Margin of error = 5%


    It would be perfect if someone use my data in formula so I can how it been used

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    Re: Calculate Sample size using calculator ?

    For what test? What kind of data?

    Maybe you want to use g*power by Faul & Erdfelder (freeware).

    Or you might find something convenient here: http://powerandsamplesize.com/

    With kind regards

    K.

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    hanialbarni (12-25-2014)

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    Question Re: Calculate Sample size using calculator ?

    It is a test to determine number of people you need to test in order to generalize the population , I find a calculator online and it give me exactly 217 sample size.

    Unfortunately I check other sites, youtubes, it is difficult to follow how they are calculating the sample size.

    How can I get the same output in the picture but manually ?
    Attached Images  

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    Question Re: Calculate Sample size using calculator ?

    Anyone willing to help ?

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    Re: Calculate Sample size using calculator ?


    Quote Originally Posted by hanialbarni View Post
    It is a test to determine number of people you need to test in order to generalize the population , I find a calculator online and it give me exactly 217 sample size.

    Unfortunately I check other sites, youtubes, it is difficult to follow how they are calculating the sample size.

    How can I get the same output in the picture but manually ?
    I think the online calculator that you found is using the equation that can be found in the attached link:

    http://www.research-advisors.com/tools/SampleSize.htm

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