Attribute chart: np chart is generally used to monitor the number of non-conforming or defective items in the measurement process.
Attribute Charts: p Chart is generally used to analyze the proportions of defective or non-confirming items in a process.
The F-distribution tests equality of variances between two normal populations, and explains its properties and how it relates to the F-test.
Value Stream Analysis is the step after mapping: examining the map to find bottlenecks, wait times, and waste, and turning them into concrete improvements.
One of the biggest challenges for Six Sigma students is Hypothesis Testing. Use the Hypothesis Tests Study Guide, and you’ll be set!