Determine centerline and the upper and lower control limits

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Reference no: EM131410090

Use the control chart limits developed in given Exercise and the following sample results to evaluate whether the process is in control:

Sample
	1	2	3	4	5	6
Mean burst strength	3390	3447	3410	3466	3440	3384

Exercise
When the robot welder is functioning properly, the natural gas cylinders being produced have an average burst strength of 3400 psi, with a standard deviation of 100 psi.

Determine the centerline and the upper and lower control limits for a 3-sigma mean control chart in which each sample consists of 4 cylinders.

Reference no: EM131410090

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