Wilcoxon Signed-Rank

Results
Calculated from: Wilcoxon_Signed_Rank.csv using R.
P-value (asymptotic): 0.0166
Z-value: -2.3953

Written as a sentence
There was a significant difference between Group A and Group B (z = -2.40, p < 0.05).


Test assumptions
Your data must have these characteristics for this test to be valid.
1) Values are paired and come from the same population.
2) Pairs are chosen randomly and are independent of each other.


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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