Examlex
_____ is the statistic that is used to examine variance in performance.
Null Hypothesis
The hypothesis that there is no significant difference between specified populations, any observed difference being due to sampling or experimental error.
Alternative Hypothesis
In hypothesis testing, it is the hypothesis that suggests there is an actual effect or relationship present in the population.
P-value
The chance of encountering outcomes in a test that are as extreme or exceed the observed findings, given that the null hypothesis holds.
Test Statistic
A value calculated from sample data that is used in hypothesis testing to decide whether to reject the null hypothesis.
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