Friedman

Results
Calculated from: Friedman.csv using R.
P-value: 0.0224
χ² (chi-squared): 7.60
Degrees of freedom: 2

Mean Ranks
2004: 1.00
2005: 2.60
2006: 2.40

Written as a sentence
There was a significant difference in the distribution of Group over Value; χ² = 7.60, p < 0.05.


Pairwise significance (Mann-Whitney)
No pairwise significance was found (p >= 0.05).


Test assumptions
Your data must have these characteristics for this test to be valid.
1) All values are mutually independent.


Interpreting results: recommended readings
Need a refresher? Start here!
1) Warning Signs in Experimental Design and Interpretation
2) Type I and Type II Errors






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