Pareto Analysis
Pareto analysis is based on the Pareto principle (80/20 rule), which states that roughly 80% of effects come from 20% of causes. In quality management, Pareto charts help identify the most significant problems or defects. The chart displays bars in descending order of frequency, with a cumulative percentage line. Pareto analysis helps prioritize improvement efforts by focusing on the 'vital few' rather than the 'trivial many'.
Knowledge Check
1.The Pareto principle (80/20 rule) states that approximately:
2.What is the primary purpose of a Pareto chart?
3.In a Pareto chart, the bars are arranged in:
4.The cumulative percentage line in a Pareto chart helps identify:
5.A factory has defect types: A (40), B (30), C (15), D (10), E (5). Using Pareto analysis, what is the cumulative percentage after B?
6.The Pareto chart is based on the work of:
7.Which quality tool is often used together with the Pareto chart?
8.In a Pareto analysis, the 'trivial many' refers to:
9.A Pareto chart is most useful when:
10.What is the first step in creating a Pareto chart?