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Bartlett's test for equal variances
Tests if three or more samples have equal variances. Requires that the samples are independent and normally distributed. The
Shapiro-Wilk Expanded test
can be used to check if samples are normally distributed.
Tests the hypotheses:
H
_{0}
The samples have equal variances
H
_{1}
The sample variances are unequal
Data Entry
No samples:
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Sample A:
Sample B:
Sample C:
Significance level α
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Test Result
Data Summary
Sample
N
Mean
Stdev
A
B
C
Result
Significance level α:
P-value:
Chi-square score:
Result:
Data Visualization