Examlex
Regarding drug and alcohol testing of employees by employers:
Level Of Significance
A predetermined threshold of probability below which the null hypothesis is rejected in hypothesis testing, typically set at 0.05 (5%).
Null Hypothesis
A hypothesis stating there is no significant difference or effect, or a specified parameter equals a certain value, in the population being studied.
Critical Value(s)
Threshold(s) in hypothesis testing that define the boundary or boundaries for rejecting the null hypothesis.
Null Hypothesis
A statement in hypothesis testing that there is no significant difference or effect, serving as the default assumption to be tested against.
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