Question: I also need: R bar= UCL for x= LCL for x= UCL for R= LCL for R= D4= D3= Refer to Table S6.1 - Factors

I also need: R bar= UCL for x= LCL for x= UCL for

I also need:

R bar=

UCL for x=

LCL for x=

UCL for R=

LCL for R=

D4=

D3=

Refer to Table S6.1 - Factors for Computing Control Chart Limits (3 sigma) for this problem. Auto pistons at Wemming Chung's plant in Shanghai are produced in a forging process, and the diameter is a critical factor that must be controlled. From sample sizes of 10 pistons produced each day, the mean and the range of this diameter have been as follows: Day 1 2 3 Mean x (mm) 156.9 153.2 151.6 153.5 158.6 Range R (mm) 4.0 4.6 4.1 5.2 4.5 4 5 a) What is the value of . off? X= mm (round your response to two decimal places)

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