What is graphical tool that detects special cause variation

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Reference no: EM132258673

1. Which of the following is true about control charts?

1. Control charts should only be used to analyze stable processes

2. There are many types of control charts, but they all calculate mean, standard deviation, and control limits the same way

3. If you know the number of samples you have, you know which type of control chart to use

4. A control chart is the best tool to use when the process is not documented or has new people using it every day.

2. What is a graphical tool that detects special cause variation?

1. Control charts

2. Affinity diagram

3. Flow chart

4. Linear graph

3. To construct a control chart, the data must be in time-series order.

True

False

4. Within variation indicates

1. Potentially free of special cause variation

2. More representative of process performance over a longer period of time

3. Sometimes referred to as "long-term" variation

4. Represented in Pp/Ppk calculations

Reference no: EM132258673

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