A company manufactures valves for industrial use. Ten samples of 500 valves each were taken from...
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A company manufactures valves for industrial use. Ten samples of 500 valves each were taken from the production line and tested. The results are reported below. Sample 1 2 3 4 5 Number Defective 10 16 12 16 10 Sample 6 7 8 9 10 Number Defective 25 13 10 11 17 a) What is the Upper Control limit and Lower control limit if medium used as center line? b) Draw a Run control chart for proportion defective showing center line, upper control limit, lower control limit and plotting the ten points. (Using 2 sigma for calculation) c) What comments can you make about the results? Is the process in-control? What action should be taken? d) List advantage and disadvantages of the manufacturer's method of control compared to measuring the actual breaking strength. A company manufactures valves for industrial use. Ten samples of 500 valves each were taken from the production line and tested. The results are reported below. Sample 1 2 3 4 5 Number Defective 10 16 12 16 10 Sample 6 7 8 9 10 Number Defective 25 13 10 11 17 a) What is the Upper Control limit and Lower control limit if medium used as center line? b) Draw a Run control chart for proportion defective showing center line, upper control limit, lower control limit and plotting the ten points. (Using 2 sigma for calculation) c) What comments can you make about the results? Is the process in-control? What action should be taken? d) List advantage and disadvantages of the manufacturer's method of control compared to measuring the actual breaking strength.
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Based on the question youve provided Ill address each part of it step by step Please note that for these calculations the term medium seems to be a typographical error and it should be median However ... View the full answer
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