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15. Applied Machines produces large test equipment for integrated cireuits. The machines are made to order, so the production rate varies from month to month. Before shipping, each machine is subject to extensive testing. Based on the tests the machine is either passed or sent back for rework. During the past 20 months the firm has had to rework the following numbers of machines: Number Number Number Number Month Produced Reworked Month Produced Reworked 23 28 16 3 3 11 17 3 12 4 1 13 14 2 14 41 15 16 18 32 4 29 19 17 18 33 46 21 4 5 12 1 19 7 10 7 1 20 29 7 Determine if the process was in control for the 20-month period using a stan- dardized version of the p chart. Assume three-sigma limits for the control chart. 123456 7 8 9으

15. Applied Machines produces large test equipment for integrated cireuits. The machines are made to order, so the production rate varies from month to month. Before shipping, each machine is subject to extensive testing. Based on the tests the machine is either passed or sent back for rework. During the past 20 months the firm has had to rework the following numbers of machines: Number Number Number Number Month Produced Reworked Month Produced Reworked 23 28 16 3 3 11 17 3 12 4 1 13 14 2 14 41 15 16 18 32 4 29 19 17 18 33 46 21 4 5 12 1 19 7 10 7 1 20 29 7 Determine if the process was in control for the 20-month period using a stan- dardized version of the p chart. Assume three-sigma limits for the control chart. 123456 7 8 9으

Practical Management Science
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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15. Applied Machines produces large test equipment for integrated cireuits. The machines are made to order, so the production rate varies from month to month. Before shipping, each machine is subject to extensive testing. Based on the tests the machine is either passed or sent back for rework. During the past 20 months the firm has had to rework the following numbers of machines: Number Number Number Number Month Produced Reworked Month Produced Reworked 23 28 16 3 3 11 17 3 12 4 1 13 14 2 14 41 15 16 18 32 4 29 19 17 18 33 46 21 4 5 12 1 19 7 10 7 1 20 29 7 Determine if the process was in control for the 20-month period using a stan- dardized version of the p chart. Assume three-sigma limits for the control chart. 123456 7 8 9으
Transcribed Image Text:15. Applied Machines produces large test equipment for integrated cireuits. The machines are made to order, so the production rate varies from month to month. Before shipping, each machine is subject to extensive testing. Based on the tests the machine is either passed or sent back for rework. During the past 20 months the firm has had to rework the following numbers of machines: Number Number Number Number Month Produced Reworked Month Produced Reworked 23 28 16 3 3 11 17 3 12 4 1 13 14 2 14 41 15 16 18 32 4 29 19 17 18 33 46 21 4 5 12 1 19 7 10 7 1 20 29 7 Determine if the process was in control for the 20-month period using a stan- dardized version of the p chart. Assume three-sigma limits for the control chart. 123456 7 8 9으
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