Kalkulačka Wilcoxonova testu

Použije Wilcoxonův test pro párové vzorky bez předpokladu normality.

Calkulon makes complex calculations simple — built for students and everyday problem-solvers.

1. 1Two versions: signed-rank (paired), rank-sum (independent)
2. 2Signed-rank: ranks absolute differences, sums signed ranks
3. 3Null: median difference = 0
4. 4Non-parametric; uses ranks instead of actual values

• !Using wrong test variant (paired vs. independent)
• !Parametric t-test on non-normal data
• !Treating tied values incorrectly