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CAPM Practice: Demonstrate an understanding of common problem-solving tools and techniques

Question 88 of 106 in Demonstrate an understanding of common problem-solving tools and techniques

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A project manager applies the 80/20 rule and discovers that 3 out of 15 defect categories account for 78% of all defects. She decides to focus all improvement resources on those 3 categories. A stakeholder challenges this, arguing the other 12 categories are also important. What is the BEST response?
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Correct answer: Explain that Pareto analysis identifies the vital few causes that will yield the most improvement per unit of effort, optimizing resource use

Explanation

Pareto analysis (the 80/20 rule) is about maximizing impact with limited resources. By focusing on the 3 categories causing 78% of defects, the team will achieve the greatest quality improvement for the investment made. The stakeholder is correct that other categories matter, but optimizing resource allocation means starting with the highest-impact items — not ignoring the others, but sequencing priorities effectively.

**Why not A:** Distributing resources equally across all 15 categories ignores the Pareto principle and wastes effort on low-impact areas. Equal distribution means the three categories causing 78% of defects receive the same attention as categories causing minimal defects, resulting in far less overall improvement.

**Why not B:** Commissioning a new study delays action and is unnecessary when the data already shows a clear pattern. The 80/20 analysis has already identified the vital few categories, and requiring exact percentages before acting is an example of analysis paralysis that wastes time and resources.

**Why not D:** Removing the 12 less-frequent categories from the quality management plan entirely is too extreme. Pareto analysis guides prioritization, not elimination. The less-frequent categories should remain documented and may be addressed after the highest-impact categories are improved.

Key Concept

This question covers Demonstrate an understanding of common problem-solving tools and techniques under Demonstrate an understanding of common problem-solving tools and techniques (Project Management Fundamentals and Core Concepts).

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