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Variation Levene test

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Basic Statistics
Mean
n
Median
STDEV
Cp Cpk % out of tolerance
Min/Max
Compare with
Calculate Difference
Diff mean normally
Diff median not normally
Diff variation normally
Diff variation not normally
Normally test
Correlation
Regression
Kurtosis
Skewness


Full version of Develve
For commersial use
75 EURO

To calculate if there is a significant difference in variation between two data-sets. This test is robust when the data is not normally distributed. It calculates the Levene variation test between this column and the comparing column.



Interpretation

Options

Colors of the cells

Formula Calculating W value

formula

With the W value and the degrees of freedom can the program calculate the p value.

Legend

formula
formula Mean of all formula data
formula Mean formula group formula
formula total number of samples
formula number of samples in group formula
formula number of groups

Example

Select Variation test. To use the Levene test first select "non normal distributed" when the box is not selected the F-test is calculated. Then select Diff variation. In this example C and D are significantly different in variance compared to A.

Data file

Multiple Levene test

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Tools
Proportions
Chi Square test
One way Anova
Kruskal-Wallis Test
Variation Levene test
Multiple Correlation
Multiple linear Regression
Generate Distribution
Calculations
Filter
Box-Cox transformation
Gauge R&R
Distribution fitting
Graphs


Full version of Develve
For commersial use
75 EURO

To calculate if there is a significant difference in variation between two or more data-sets. This test is also robust when the data is not normally distributed. It calculates the Levene variation test between the selected columns.

Interpretation

Colors of the cells

formula

formula

With the W value and the degrees of freedom the program can calculate the p value out of the F distribution.

Legend

formula
formula Mean of all formula data
formula Mean formula group formula
formula total number of samples
formula number of samples in group formula
formula number of groups

Example

To use the Multiple Levene test "Menu: Tools=> Multiple Levene test". Then select the data-sets to compare. In this example there no significantly different in variance in the selected columns.

Data file

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