The Guaranteed Method To Bartletts Test
Breusch–Pagan test
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https://agupubs. test and mood. org/stable/96803
Box GEP (1953) Non-normality and tests on variances. 1007/978-3-642-04898-2_132Published: 02 December 2014
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-04897-5
Online ISBN: 978-3-642-04898-2eBook Packages: Mathematics and StatisticsReference Module Computer Science and EngineeringBartletts test is used to check whether all samples have the same variance. 05.
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arrays of sample data. Setting up the null and alternative hypothesis, calculating test statistic and comparing to a critical value to make a conclusion.
I really appreciate your help in improving the website. A robust test for homogeneity of variance to consider is the nonparametric Levenes Test.
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CharlesThank you very much for your reply. Hypothesis testing is a statistical method that is used in making a statistical decision using experimental data. itl.
If there are k samples with sizes
n
{\displaystyle n_{i}}
and sample variances
S
i
2
{\displaystyle S_{i}^{2}}
then Bartlett’s test statistic is
where
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N
=
i
=
1
n
i
{\displaystyle N=\sum _{i=1}^{k}n_{i}}
and
S
p
2
=
1
N
k
i
(
n
i
1
)
S
i
2
{\displaystyle S_{p}^{2}={\frac {1}{N-k}}\sum _{i}(n_{i}-1)S_{i}^{2}}
is the pooled estimate for the variance. .