News

Investopedia9y
Standard Deviation vs. Variance: What’s the Difference?
In this example, N is 10 and N-1 would be 9. The result is a sample variance of 82.5/9 = 9.17 and a population variance of 8.25. Note that the standard deviation is the square root of the variance ...
isixsigma on MSN6mon
Homogeneity of Variance and Statistical Inference: What You Need to Know
Homogeneity of variance is the assumption that your data sets are equal in variance. It allows for the validation of ...
Simon Fraser University7y
Homogeneity of Variance in One-Way Models
You can test this assumption in PROC GLM by using the HOVTEST option in the MEANS statement, requesting a homogeneity of variance test. This section discusses the computational details behind these ...