PMP Exam Prep Question of the Week

You are managing a process improvement project that is attempting to improve the efficiency of technical processes for offshore drilling operations. Which quality control tool would you use to determine if there was a relationship between the length of the team’s work shifts and the number of safety incidents reported?

1. Control chart
2. Run chart
3. Scatter diagram
4. Pareto chart

The correct answer is 3.

Scatter diagram is the correct answer because scatter diagrams plot two variables, which are called the independent variable and dependent variable, to show the relationship between them. By plotting these two variables, you can graphically show the relationship between two variables.

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