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Statistical Process control - Control charts

1. Describe an organizational scenario where quantitative (ratio level of measurement) information is or could be used to make management decisions about creating, maintaining, or improving quality.
2. State the management information need. How will the analysis be used?
3. Identify the variable(s) being measured.
4. Describe how samples are (or could be) selected. Use an appropriate random sampling method. Consider number, timing, location, etc. of sampling as relevant to the situation.
5. Determine (or describe) what type(s) of statistical process control are most suitable for the management information need: mean, range, or attribute (percent or number of defects).
6. Construct at least one control chart, including means and control limits. Use the control chart to determine if at least one sample is in control.
7. Consider actual or potential causes of variation using a Pareto, Fishbone, or other diagnostic chart.
8. Evaluate the process and draw conclusions about how it is or should be managed. Make recommendations, as need, about how the process can be brought into or maintained in control.

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