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Analyze the pattern of the r-chart.

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Reference no: EM13884271

Part 1

1. Construct an x-bar chart. Need to use graph paper.

2. Calculate and plot the centerline and upper and lower control limits for the charts.

3. Calculate and plot the A, B and C zone boundaries of the x-bar chart.

4. Plot the 24 sample means on the x-bar chart.

5. Based on x-bar findings, is the process under statistical control? Explain and justify your answer.

Part 2

6. Construct an R-chart. Need to use graph paper.

7. Calculate and plot the centerline and upper and lower control limits for the charts.

8. Calculate and plot the A, B and C zone boundaries of the R-chart.

9. Plot the sample ranges on the R-chart.

10. Analyze the pattern of the R-chart.

11. Based on R-chart findings, is the process under statistical control? Explain and justify your answer.

Part 3

12. Theoretically, what is the difference between x-bar chart and R-chart? Explain briefly.

13. How are they used? That is, what is their purpose? Explain briefly.

Part 4

14. Compare the findings from your x-bar chart and R-chart.

15. Explain why rational sub-groupings are used in constructing control charts?

16. What are the major findings from the study? Explain briefly.

17. What are your conclusions from the study? Explain briefly.

Reference no: EM13884271

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