Question: Use EXCEL to answer the question . Open the excel file and solve the Q6 sheet. Q6. Process Capability Index (20 points) One of the

Use EXCEL to answer the question. Open the excel file and solve the Q6 sheet.

Q6. Process Capability Index (20 points) One of the tasks on the turnaround list for a rental car agency is to check and adjust tire pressure. When a tire is over-inflated, it can cause a bouncy ride and poor handling. If it is underinflated, it can cause premature wear due to increased friction. On a business day, the average tire pressures on 30 returning vehicles are measured. It is known that the UCL is 33.8737 (psi) and the LCL is 31.2763 , the USL is 35 and LSL is 32 . Refer to the plot on the next page, answer the following questions: What is the process capability index? Is this process capable according to a four-sigma standard? Is this process capable according to a two-sigma standard? Is this process capable according to a one-sigma standard

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