Statistical Procedures

Programming the statistical procedures from SAS
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Jack2012
Obsidian | Level 7

Dear Supporters,

 

I ran a PROC TTEST for comparison of two groups, from the Equality of Variance test the p-value is far less then the 0.05, hence, we can say these two samples are heterogeneous of variance, in this case, why the CV is not calculated by Satterthwaite method, but still by the pooled method ? How to interprest such CV? Thanks.

The data is lognormal distributed.


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1 REPLY 1
PaigeMiller
Diamond | Level 26

I would ignore the reported CV in this case.

 

If you really need a CV-like statistic in this case, compute it using the mean and variance of each group.

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Paige Miller

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What is ANOVA?

ANOVA, or Analysis Of Variance, is used to compare the averages or means of two or more populations to better understand how they differ. Watch this tutorial for more.

Find more tutorials on the SAS Users YouTube channel.

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