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Sample sizes are dependent upon the data type (discrete data requires more than continuous), the desired precision (+/- 2 minutes or =/- 2%, etc.) and the variation in the data (measured as standard deviation for continuous data and % defective…
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Elisabeth Swan

Elisabeth is a Managing Partner at GoLeanSixSigma.com, the co-author of The Problem-Solver’s Toolkit and co-host of the Just-in-Time Cafe. 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.