Plot all the points on a control chart

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The data for the Western Jeans control chart problem is as follows. The sample size of each sample is 100.

1. Calculate the center line, the upper control limit, and the lower control limit using the data above. Show your work by including the equations you are using for each. If you can't create a square root sign, use another symbol such as a "v" in the place where a square root sign would go or just indicate "square root" where it would go.

2. Plot all the points on a control chart, and draw your three lines.

3. Answer the following question: Is this process in control? Why or why not?

4. Is the graph trending in any particular direction? What does this tell you?

Reference no: EM132804786

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