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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.

Elisabeth Swan

Elisabeth is a Managing Partner at For over 25 years, she's helped leading organizations like Amazon, Charles Schwab and Starwood Hotels & Resorts build problem-solving muscles with Lean Six Sigma to achieve their goals.