Suppose you are given the following R and X-bar charts associated with the weights of bulk-packaged foods (in ounces); the LCL, CL, and UCL are based on a large number of historical observations, and you plotted the most recent 6 points of data. What could you conclude? To be clear, points #1 and #2 on the range chart are both below the CL, and point 2 is slightly higher than point 1; point #5 on the X-bar chart is below the UCL (it may be hard to see depending on your device). Link to range chart image here; link to x-bar chart image here 16 6420 NO 14 12 Process Range 1 2 Range Chart 3 Sample 4 5 6

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter13: Regression And Forecasting Models
Section13.4: Multiple Regression Models
Problem 17P: The owner of a restaurant in Bloomington, Indiana, has recorded sales data for the past 19 years. He...
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Suppose you are given the following R and X-bar charts associated with the weights of bulk-packaged foods (in ounces); the LCL, CL, and UCL are based on a large number of
historical observations, and you plotted the most recent 6 points of data. What could you conclude?
To be clear, points #1 and #2 on the range chart are both below the CL, and point 2 is slightly higher than point 1; point #5 on the X-bar chart is below the UCL (it may be
hard to see depending on your device).
Link to range chart image here ; link to x-bar chart image here
Process Range
16 14 12 10
864 NO
1
2
Range Chart
3
4
Sample
5
6
Transcribed Image Text:Suppose you are given the following R and X-bar charts associated with the weights of bulk-packaged foods (in ounces); the LCL, CL, and UCL are based on a large number of historical observations, and you plotted the most recent 6 points of data. What could you conclude? To be clear, points #1 and #2 on the range chart are both below the CL, and point 2 is slightly higher than point 1; point #5 on the X-bar chart is below the UCL (it may be hard to see depending on your device). Link to range chart image here ; link to x-bar chart image here Process Range 16 14 12 10 864 NO 1 2 Range Chart 3 4 Sample 5 6
Process Average
12
10
8
2
0
1
2
X-bar Chart
3
4
5
6
Sample
Packaging weights are steadily getting larger, while variation in packaging weights remains relatively consistent
Variation in packaging weights is increasing, resulting in larger-than-usual packaged weights
Variation in packaging weights is increasing, resulting in smaller-than-usual packaged weights
Variation in packaging weights is decreasing, resulting in larger-than-usual packaged weights
Variation in packaging weights is decreasing, resulting in smaller-than-usual packaged weights
Transcribed Image Text:Process Average 12 10 8 2 0 1 2 X-bar Chart 3 4 5 6 Sample Packaging weights are steadily getting larger, while variation in packaging weights remains relatively consistent Variation in packaging weights is increasing, resulting in larger-than-usual packaged weights Variation in packaging weights is increasing, resulting in smaller-than-usual packaged weights Variation in packaging weights is decreasing, resulting in larger-than-usual packaged weights Variation in packaging weights is decreasing, resulting in smaller-than-usual packaged weights
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