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    Tag Archives for: "distribution"
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     Statistics – Normality test
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    By Gunilla Rudander
    In Statistics & methods
    Posted 9. November 2018

    Statistics – Normality test

    Hi, I got a comment from a SPSS developer person that has a LOT of knowledge. He mentioned after my blog post in August about normality, that it’s also possible to make a test of the [...]

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     Statistics – proportions test or p-test or z-test
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    By Gunilla Rudander
    In Statistics & methods
    Posted 14. September 2018

    Statistics – proportions test or p-test or z-test

    When you find that a chi-Square test made on a  crosstable has a significant result like this: You then know that there are differences between the distributions in the cross table, in my example [...]

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     Statistics – one sample chi-square test
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    By Gunilla Rudander
    In Statistics & methods
    Posted 7. September 2018

    Statistics – one sample chi-square test

    Hi, many times (specially during my Statistical trainings), user ask me why they could find 2 different commands for chi-Square test (or chi2-test). The reason is that there is one chi-Square [...]

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     Statistics – Exact Test on small or skewed data
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    By Gunilla Rudander
    In Statistics & methods
    Posted 31. August 2018

    Statistics – Exact Test on small or skewed data

    Hi, sometimes it happens that you have too small or too skewed data to be allowed doing traditional statistical tests. For example chi2-test has some rules that has to be fulfilled (I will show [...]

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     Statistics – nonparametric pairwise test
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    By Gunilla Rudander
    In Statistics & methods
    Posted 17. August 2018

    Statistics – nonparametric pairwise test

    Last Monday 13/8 I studied a difference between “stress after” and “stress before”, to see if this difference was normal or skewed distributed. The mean value of the [...]

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     Statistics – Multiple Linear regression
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    By Gunilla Rudander
    In Statistics & methods
    Posted 13. July 2018

    Statistics – Multiple Linear regression

    Hi, here is one long blog post for this week, because of a question I got. The user has tried to find any “step-by-step” instruction how to do multiple linear regression, but [...]

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     Statistics – chi square test in a crosstable
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    By Gunilla Rudander
    In Statistics & methods
    Posted 1. June 2018

    Statistics – chi square test in a crosstable

    Hi, if you want to test if the frequency distribution differs between groups in a crosstable you can use the most common statistical test called chi2-test or [...]

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