Question: a) Using the data in the table, compute the center line, the upper control limit, and lower control limit for the and R charts. (10

a) Using the data in the table, compute the center line, the upper control limit, and lower control limit for the and R charts. (10 Marks) X b) Is the process in control? Interpret the charts. (4 Marks) Note: Refer to Appendix 1 for out of control symptom c) If the specification is 68.51 0.25, compute the index process capability Cp and Cpk. Interpret the result. (6 Marks)

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