Examlex
SQL is not a complete programming language.Rather it is a data sublanguage.
Z-Statistic
A statistical measure that indicates how many standard deviations an element is from the mean of a distribution.
Rejection Region
The range of values for which the null hypothesis is rejected in hypothesis testing, indicating statistical significance.
Significance Level
A statistical term that determines the threshold at which a null hypothesis is rejected.
Wilcoxon Signed-Rank Test
A statistical test used for comparing two related samples to determine if their population means rank differ.
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