At Webster Chemical Company, lumps in the caulking compound could cause difficulties in dispensing a smooth bead
Question:
At Webster Chemical Company, lumps in the caulking compound could cause difficulties in dispensing a smooth bead from the tube. Even when the process is in control, an average of four lumps per tube of caulk will remain. Testing for the presence of lumps destroys the product so an analyst takes random samples. The following results are obtained:
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Determine the c-chart two-sigma upper and lower control limits for this process. Is the process in statistical control?
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Webster cchart The 11th tube has too many lumps 9 so ...View the full answer
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Related Book For 
Operations management processes and supply chain
ISBN: 978-0136065760
9th edition
Authors: Lee J Krajewski, Larry P Ritzman, Manoj K Malhotra
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