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That’s right! In our case we were comparing the average daily sales at the two Bahama Bistro locations. If there were a third location, we’d have moved on to the ANOVA (Analysis of Variance) test which allows comparison of two or more data sets. The decision tree helps with these decisions.
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Elisabeth Swan

Elisabeth is a Master Black Belt at, the co-author of The Problem-Solver’s Toolkit and co-host of the Just-in-Time Cafe. For over 30 years, she's helped leading organizations like Amazon, Charles Schwab and Marriott International, Inc. build problem-solving muscles with Lean Six Sigma to achieve their goals.