This is documentation for Mathematica 8, which was
based on an earlier version of the Wolfram Language.
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SignificanceLevel

SignificanceLevel
is an option to VarianceTest and similar functions that controls cutoffs for diagnostic tests as well as test conclusions.
  • The level used for verifying assumptions such as normality is taken to be where is the number of datasets being tested.
Set test sizes for diagnostics used in LocationTest:
The -value is equivalent but a warning is issued:
Set the cutoff used in and properties:
By default, is used:
Set test sizes for diagnostics used in LocationTest:
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The -value is equivalent but a warning is issued:
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Set the cutoff used in and properties:
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By default, is used:
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The significance level can affect the degrees of freedom for some tests:
An assumption of equal variances is rejected at the 25% level and a Satterthwaite approximation is used for the degrees of freedom:
The significance level is divided by the number of comparisons when assumptions are checked:
Using with 50 tests for normality results in each one being tested at the level:
New in 8