In Six Sigma, the Analyze phase uses data to identify cause-effect relationships.

In Six Sigma, the Analyze phase uses data to identify cause-effect relationships.

• A. Define
• B. Analyze
• C. Measure
• D. Control

Answer: (B)

In Six Sigma, the Analyze phase is where you use data to uncover which inputs actually drive outputs. After defining the problem and gathering baseline data, you test hypotheses about how process factors influence results and identify the root causes of variation. You apply statistical tools such as regression, hypothesis testing, ANOVA, and Design of Experiments to reveal and quantify cause-effect links, helping you distinguish true drivers from mere correlations. Once these causal factors are confirmed, you can target your improvement efforts exactly at the factors that matter. The Define phase sets the problem and goals, the Measure phase establishes the baseline with data, and the Control phase sustains gains by monitoring the process, while the Analyze phase ties data to real causes to guide change.

In Six Sigma, the Analyze phase is where you use data to uncover which inputs actually drive outputs. After defining the problem and gathering baseline data, you test hypotheses about how process factors influence results and identify the root causes of variation. You apply statistical tools such as regression, hypothesis testing, ANOVA, and Design of Experiments to reveal and quantify cause-effect links, helping you distinguish true drivers from mere correlations. Once these causal factors are confirmed, you can target your improvement efforts exactly at the factors that matter. The Define phase sets the problem and goals, the Measure phase establishes the baseline with data, and the Control phase sustains gains by monitoring the process, while the Analyze phase ties data to real causes to guide change.