A project manager wants to identify and prioritize the most frequent sources of defects in a process to focus improvement efforts where they will have the greatest impact. Which of the following charts should the project manager use?
Histogram
Run chart
Pareto chart
Fishbone diagram
A Pareto chart is designed to highlight the most significant factors among a set of factors. It displays data in descending order of frequency, helping the project manager identify the few causes that are resulting in the majority of the problems (the 80/20 rule). This allows for targeted improvements. While a histogram shows data distribution, a run chart displays data trends over time, and a fishbone diagram (Ishikawa diagram) helps identify potential causes of a problem but does not prioritize them by frequency.
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