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

The Define phase of a Lean Six Sigma project establishes the groundwork for success. In this case study, we investigate how a manufacturing company employed the Define phase to identify inefficiencies in their production process. A cross-functional team was constituted consisting of representatives from diverse departments, including operations, q