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Data Science, Lean Six Sigma

Making Sense of Test For Equal Variances

Three teams compete in our CHL business simulation, CHL Red, CHL Green and CHL Blue. After completing Day One, it looks like the teams show a very different performance (Figure 1). Although the means look very similar, the variation is strikingly different. This is surprising, since all teams start with exactly the same prerequisites. To test this assumption of different variability among the teams, the Test for Equal Variances is deployed.

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