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New Course
Concept
Significance Level
The
significance level
, often denoted by alpha, is the threshold for determining whether a
statistical hypothesis test
result is
statistically significant
. It represents the
probability of rejecting the
null hypothesis
when it is actually true, and is commonly set at 0.05 or 5%, indicating a
5% risk
of
concluding that a difference exists
when there is no
actual difference
.
Relevant Degrees
Probability and Statistics 100%
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