Examlex
Whose interests were served by the introduction of civil service examinations in Koryŏ Korea?
Z-statistic
A type of standard score that indicates how many standard deviations an element is from the mean, used in significance testing.
Significance Level
A threshold for determining whether a p-value indicates a statistically significant result, usually set at 0.05 (5%).
Nonparametric Tests
Statistical tests that do not assume a specific distribution for the data, making them suitable for analyzing ordinal data or when the assumptions for parametric tests are not met.
Nonparametric Statistical Methods
Statistical methods that do not assume a specific distribution for the data, often used when data doesn't meet the assumptions required for parametric tests.
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