Examlex
Systematic sampling is one of the most prevalent types of sampling techniques used in place of simple random sampling and its use has been increasing.
Null Hypothesis
A statistical hypothesis that assumes no significant difference or effect exists between certain characteristics or parameters of a population or dataset.
Level of Significance
A threshold used in hypothesis testing to determine the probability of rejecting a true null hypothesis, commonly set at values like 0.05 or 0.01.
Degrees of Freedom
The quantity of distinct variables or measures that may fluctuate during an evaluation without breaching any restrictions.
Test Statistic
A calculated value used to determine whether to reject the null hypothesis in statistical hypothesis testing.
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