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After completing a Design of Experiment, Bill needed to determine the best quality tool(s) to demonstrate correlation and determine how an independent variable will influence its dependent variable component.
Scatter Diagram
Histogram
Pareto
Histogram & Pareto
Scatter Diagram is correct as this is the analytical tool which plots paired order pairs, determines a proportional relationship (or not) so that a regression analysis can be calculated to show how an independent variable will influence its dependent variables. (PMBOK 2013 Rev 5th Edition, pgs 227-252).
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