CMA Intermediate · Operations Management and Strategic Management · Productivity Management and Quality Management
A plant manager wants to separate the few defect types responsible for most customer complaints so that improvement effort is directed first at them. Which quality tool is designed for this purpose?
The Pareto chart is the correct tool. It ranks defect types by frequency with a cumulative percentage line, so the vital few causes behind most complaints become visible and improvement effort can be targeted at them first, following the 80/20 principle.
- APareto chartCorrect
- BScatter diagram
- CHistogram
- DFlow chart
Explanation
A Pareto chart ranks causes or defect types by frequency and shows cumulative percentage, highlighting the vital few that produce most of the problem. A scatter diagram only shows the relationship between two variables, a histogram shows the distribution of one variable, and a flow chart maps process steps.
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