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Math Help - How do I determine whether my data are normal?

  1. #1
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    Smile How do I determine whether my data are normal?

    How do I determine whether my data are normal?
    I have sample students (Ato J) and have taxable income in thousand of $


    thank you for take your time to read my qeustion and the answers!
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  2. #2
    MHF Contributor matheagle's Avatar
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    As your link says, the classic test for normality is the Kolmogorov-Smirnov test. IN JMP for some reason they prefer the Shapiro-Wilk test.


    The Kolmogorov-Smirnov test (K-S) and Shapiro-Wilk (S-W) test are designed to test normality by comparing your data to a normal distribution ....
    This is a little better....http://en.wikipedia.org/wiki/Kolmogorov-Smirnov_test
    And here is a test in SPSS http://faculty.chass.ncsu.edu/garson/PA765/kolmo.htm
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