Z-scores serve a crucial function in Lean Six Sigma by providing a consistent measure of how far a data point resides from the mean. Essentially, they transform raw data into comparable units, allowing for effective analysis and improvement. A positive Z-score indicates a value above the mean, while a negative Z-score illustrates a value below the

The Define phase of a Lean Six Sigma project establishes the groundwork for success. In this case study, we analyze how a manufacturing company utilized the Define phase to pinpoint inefficiencies in their production process. A cross-functional team was assembled consisting of representatives from different departments, including operations, quali