The initial Define phase of Lean Six Sigma in manufacturing is vital for creating a clear scope and project objectivegoals. It involves deeply understanding the customer’ needs and translating them into a testable problem statement. Teams typically employ tools like Voice of the Customer interviews

The Chi-square test acts as a statistical tool used to examine the connection between two or more categorical variables. This measures whether there is a significant difference between the observed and expected frequencies in a dataset. The test relies the concept of chi-square, which indicates the