EBK OM
6th Edition
ISBN: 9781305888210
Author: Collier
Publisher: YUZU
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Question
Chapter 16, Problem 5PA
Summary Introduction
Interpretation: A control chart using Excel
Concept Introduction: Control charts are also called as Process chart. It is used to draw the statistical process of the manufacturing process in the business. This chart is one of the statistically process control tool.
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Students have asked these similar questions
8
A pizza delivery service wants to track their delivery times. They take eight samples of four deliveries and record the following data. What are the upper and lower control limits of their X-bar chart? (Note: Although it looks similar, the data in the table below is different from the data in the table relating to the UCL and LCL for the R chart.)
Sample #
1
2
3
4
5
6
7
8
Item #1
21.1
20.2
24.6
22.6
23.7
20.9
22.4
20.7
Item #2
22.2
20.6
20
20.7
24.1
23.9
24.6
24.4
Item #3
23.0
24.5
23.2
23.0
20.7
22.8
23.0
22.8
Item #4
20.0
23.5
25.5
25.0
20.7
23.2
23.3
24.5
Sum
86.3
88.8
93.3
91.3
89.2
90.8
93.3
92.4
Group of answer choices
25.2, 20.0
25.4, 20.0
23.9, 21.3
24.1, 21.1
 A fast food franchise tracked the number of errors that occurred in customers orders. These included;
* wrong menu items
*wrong size drink
*lack of condiments
*wrong price total
*and so on...
Some orders may have more than one error.
In one week, 1500 orders were filled, and a total of 72 errors were discovered.
Find the control limits for a
C – Chart to monitor the number of errors per order. Is order accuracy, good or bad ?
Explain.
9. A pizza delivery service wants to track their delivery times. They take eight samples of four deliveries and record the following data. What are the upper and lower control limits of their R-chart? (Note: Although it looks similar, the data in the table below is different from the data in the table relating to the UCL and LCL for the X-bar chart.)
Sample #
1
2
3
4
5
6
7
8
Item #1
21.1
20.2
24.1
22.6
21.2
20.0
22.0
20.2
Item #2
21.7
20.6
21.0
22.1
24.1
24.2
24.6
24.9
Item #3
23.5
24.9
23.2
23.0
20.6
22.8
23.4
22.8
Item #4
20.0
23.5
24.8
25.0
20.7
23.2
23.3
24.5
Group of answer choices
7.0, 0.5
9.3, 0.0
8.5 0.0
10.1, 0.0
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