Examlex
Why did service in the Union army or navy benefit many freedmen?
Ordinal
Pertaining to a type of data or scale that expresses order or ranking among categories without implying precise measurements.
Friedman Test
A non-parametric statistical test for comparing more than two related groups, assessing differences across multiple test attempts.
Rejection Region
In statistical hypothesis testing, it is the range of values for which the null hypothesis is considered improbable enough to be rejected.
Significance Level
The threshold below which a null hypothesis is rejected in a statistical test, often denoted by alpha (α) and commonly set at 0.05 or 5%.
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