Question: 13. Quality: How long does it take for super glue to dry up? A manufacturing quality manager took the following five samples, each sample includes

13. Quality: How long does it take for super glue

13. Quality: How long does it take for super glue to dry up? A manufacturing quality manager took the following five samples, each sample includes four observations of dry-up times in minutes (n=4). Using the control charts table based on 3 sigma (A2, D3 and D4 --page 252 that we used in class) calculate overall mean, overall rang, LCL, UCL for both X and R chart. Comment on this process variation. Is it within control? What do you do as a manager? Sample - 1 2 3 4 5 observations 1 12.11 12.15 12.09 12.12 12.09 2 12.1 12.12 12.09 12.1 12.14 3 12.11 12.1 12.11 12.08 12.13 4 12.08 12.11 12.15 12.1 12.12 Sample mean Sample Range

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