A process considered to be in control measures an ingredient in ounces. Roberto Baggio, a quality inspector took 20 samples, each with 8 observations as follows: SAMPLES 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 15 17 18 19 20 1 11 7 13 9 12 11 13 10 8 10 11 12 13 9 8 9 11 12 9 11 29 8 9 10 10 10 12 10 8 12 9 11 9 8 10 10 10 10 12 11 OBSERVATIONS 3 10 12 10.8.918181 | 2187.99nn 12 10 11 4 13 9 9 8 9 11 12 9 11 11 10 11 12 12 14 11 12 9 12 10 5 10 6 12 11 9 10 14 10 13 11 11 12 11 9 13 15 15 11 11 10 6 11 8 11 EEEEEEE 12 12 14 15 11 10 12 13 10 12 11 13 16 14 12 13 11 11 7 9 11 10 10 11 12 8 10 12 10 9 10 10 11 12 8 9 12 8 82091089990223.9 10 12 9 10 10 9 12 5A. Using this information, obtain three-sigma (i.e., z=3) control limits for a mean control chart and control limits for a range chart, respectively. It is known from previous experience that the standard deviation of the process is 0.693. perform all actions and calculations needed to answer the question and explain the process followed to identify (each type of control limit and any observations made in the problem-solving process.
A process considered to be in control measures an ingredient in ounces. Roberto Baggio, a quality inspector took 20 samples, each with 8 observations as follows: SAMPLES 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 15 17 18 19 20 1 11 7 13 9 12 11 13 10 8 10 11 12 13 9 8 9 11 12 9 11 29 8 9 10 10 10 12 10 8 12 9 11 9 8 10 10 10 10 12 11 OBSERVATIONS 3 10 12 10.8.918181 | 2187.99nn 12 10 11 4 13 9 9 8 9 11 12 9 11 11 10 11 12 12 14 11 12 9 12 10 5 10 6 12 11 9 10 14 10 13 11 11 12 11 9 13 15 15 11 11 10 6 11 8 11 EEEEEEE 12 12 14 15 11 10 12 13 10 12 11 13 16 14 12 13 11 11 7 9 11 10 10 11 12 8 10 12 10 9 10 10 11 12 8 9 12 8 82091089990223.9 10 12 9 10 10 9 12 5A. Using this information, obtain three-sigma (i.e., z=3) control limits for a mean control chart and control limits for a range chart, respectively. It is known from previous experience that the standard deviation of the process is 0.693. perform all actions and calculations needed to answer the question and explain the process followed to identify (each type of control limit and any observations made in the problem-solving process.
Practical Management Science
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ISBN:9781337406659
Author:WINSTON, Wayne L.
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Transcribed Image Text:A process considered to be in control measures an ingredient in ounces.
Roberto Baggio, a quality inspector took 20 samples, each with 8 observations as follows:
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5A. Using this information, obtain three-sigma (i.e., z=3) control limits for a mean control chart
and control limits for a range chart, respectively. It is known from previous experience that the
standard deviation of the process is 0.693.
perform all actions and calculations needed to answer the question and explain the process followed to
identify (each type of control limit and any observations made in the problem-solving process.
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b) Discuss, with justification and observation, whether the process is in control or not.
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