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Author Question: A part that connects two levels should have a distance between the two holes of 4". It has been ... (Read 30 times)

Redwolflake15

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Question 1

The width of a bronze bar is intended to be one-eighth of an inch (0.125 inches). Inspection samples contain five bars each. The average range of these samples is 0.01 inches. What are the upper and lower control limits for the x-bar and R-chart for this process, using 3-sigma limits?

Question 2

A part that connects two levels should have a distance between the two holes of 4". It has been determined that x-bar and R-charts should be set up to determine if the process is in statistical control. The following ten samples of size four were collected. Calculate the control limits, plot the control charts, and determine if the process is in control.

MeanRange
Sample 14.010.04
Sample 23.980.06
Sample 34.000.02
Sample 43.990.05
Sample 54.030.06
Sample 63.970.02
Sample 74.020.02
Sample 83.990.04
Sample 93.980.05
Sample 104.010.06


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Marked as best answer by Redwolflake15 on Dec 3, 2019

Ddddd

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Redwolflake15

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Reply 2 on: Dec 3, 2019
Great answer, keep it coming :)


parshano

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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