Problem auto pistons at wemming chungs plant in shanghai, Ask an Expert

Management Studies

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	Mean (mm)	Range (mm)
1	156.9	4.2
2	153.2	4.6
3	153.6	4.1
4	155.5	5.0
5	156.6	4.5

a) What are the UCL x (line on top of x, counldn't find the button to do it) and LCL x (line on top of x) , using 3s? Plot the data.

b) What are the UCL R and LCL R , using 3s? Plot the data.

c) Is the Process in Control?

(Please screen shot the EXCEl if its in excel)

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Operation Management, Management Studies

Category:- Operation Management
Reference No.:- M92759185

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