Is a sample size of 50 sufficient to perform a capability study?
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…
Elisabeth is a Master Black Belt at GoLeanSixSigma.com, 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.
Lean Six Sigma Problem-Solving Training That Delivers Results 81% of our learners deliver measurable improvement results.