In an existing process, we have found that the lower control limit for X-bar chart is 8.08. Whereas the lower and upper control limits for R-chart are 0 to 2.25 respectively. The following measurements for one sample are taken: 8.5, 8.9, 8.28, and 8.7. Using both the X-bar chart and R- chart for this particular sample, what we can conclude about the overall process a. Insufficient information to conclude b. Process is in-control C. Perfect process O d. Process is out-of-control.
In an existing process, we have found that the lower control limit for X-bar chart is 8.08. Whereas the lower and upper control limits for R-chart are 0 to 2.25 respectively. The following measurements for one sample are taken: 8.5, 8.9, 8.28, and 8.7. Using both the X-bar chart and R- chart for this particular sample, what we can conclude about the overall process a. Insufficient information to conclude b. Process is in-control C. Perfect process O d. Process is out-of-control.
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
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![In an existing process, we have found that the lower control limit for X-bar chart is 8.08. Whereas,
the lower and upper control limits for R-chart are 0 to 2.25 respectively. The following
measurements for one sample are taken: 8.5, 8.9, 8.28, and 8.7. Using both the X-bar chart and R-
chart for this particular sample, what we can conclude about the overall process
a. Insufficient information to conclude
b. Process is in-control
C.
Perfect process
d. Process is out-of-control.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb8827beb-b4fa-4212-871e-ea4522c3e704%2Fc2631b49-bf99-4bc0-82f1-69571e67acc2%2F9kjp8cg_processed.jpeg&w=3840&q=75)
Transcribed Image Text:In an existing process, we have found that the lower control limit for X-bar chart is 8.08. Whereas,
the lower and upper control limits for R-chart are 0 to 2.25 respectively. The following
measurements for one sample are taken: 8.5, 8.9, 8.28, and 8.7. Using both the X-bar chart and R-
chart for this particular sample, what we can conclude about the overall process
a. Insufficient information to conclude
b. Process is in-control
C.
Perfect process
d. Process is out-of-control.
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