Examlex
Which of the following countries is a member of the APEC?
Sample Standard Deviation
A measure of variation or dispersion within a sample set of values, similar to standard deviation but specifically applied to samples rather than whole populations.
Null Hypothesis
A statement used in hypothesis testing that assumes no effect or no difference in the performance or characteristics being tested.
Alternative Hypothesis
A statement in hypothesis testing that proposes a significant difference, effect, or relationship exists in the population, opposing the null hypothesis.
Test Statistic
A statistic whose calculated value is used to decide whether to reject the null hypothesis in a hypothesis test.
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