What is the null hypothesis being tested under bartlett test of sphericity?
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The Bartlett test of sphericity is a statistical test used to verify the null hypothesis which states that variances are equal across groups or samples.
The test is named after Maurice Stevenson Bartlett. It is used to test if k samples are from populations with equal variances. The term homoscedasticity or homogeneity of variances refers to equal variances across populations. Analysis of variance assumes that variances are equal across groups or samples. This can be verified with the help of a Bartlett test.
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In statistics, Bartlett's test is used to test the null hypothesis.
This test is used to test if k samples are from the populations with equal variances. Equal variances across populations are called as the homogeneity of variances.
Some statistical tests like the analysis of variance, assume that the variances are equal across groups or samples. The Bartlett test can be used to verify that assumption.
The testing is done to prove the null hypothesis that the batch variances are all equal.
This test is used to test if k samples are from the populations with equal variances. Equal variances across populations are called as the homogeneity of variances.
Some statistical tests like the analysis of variance, assume that the variances are equal across groups or samples. The Bartlett test can be used to verify that assumption.
The testing is done to prove the null hypothesis that the batch variances are all equal.
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