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Minitab – Median Hypothesis Tab Graphical Representation

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  • #247343

    Chris RIchardson
    Participant

    Hi,

    I’ve been analysing some non parametric data in mini tab using Moods Median testing however I was looking for a graphical output that was easier to read than that included in the test output itself.

    I was trying to use a boxplot or interval plot, does anyone know how to use these outputs for medians?

    I’ve googled the topic with no success.

    Thanks

    Chris

     

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    #247380

    Joseph E. Johnson
    Participant

    Hi Chris,

    From my understanding, Nonparametric tests are used for non-normal data- so I assume you first checked for normality and randomness- I won’t go into that process here.

    Type of nonparametric testing (and subsequent graphs) depends on your data, comparing:

    *1 sample vs. target – use Wilcoxon test
    *2 population medians- use the Mann-Whitney test
    *population meadians for multiple groups- use teh Krausak-Wallace test

    for Minitab use Stats>Nonparametric>  XXXXXX test     later…graph>probability plot

    Hope this helps,

     

    Joe Johnson

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