Question 1: Resistors for electronic circuits are manufactured on a high-speed automated machine. To set up the machine and to create quality control tools to be used throughout the run, 8 samples were taken with 4 resistors in each sample. The complete list of these samples and their measured values are presented in Table 1 below. Sample 1010 Readings (in OHMS) 991 985 986
Question 1: Resistors for electronic circuits are manufactured on a high-speed automated machine. To set up the machine and to create quality control tools to be used throughout the run, 8 samples were taken with 4 resistors in each sample. The complete list of these samples and their measured values are presented in Table 1 below. Sample 1010 Readings (in OHMS) 991 985 986
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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Transcribed Image Text:Question 1: Resistors for electronic circuits are manufactured on a high-speed automated machine. To set up the machine
and to create quality control tools to be used throughout the run, 8 samples were taken with 4 resistors in each sample.
The complete list of these samples and their measured values are presented in Table 1 below.
Sample
1
2
3
4
5
6
7
8
Table 1
Sample
101
102
103
1010
995
990
Table 2
1015
1013
994
989
1001
a) Identify the appropriate quality control chart(s) for this production. (Hint: First identify the type of measurement
for this product, based on which then you can choose the appropriate chart(s).)
b)
Construct the control chart(s) you have specified in part (a).
(As included in the instructions, you only need to identify the three elements of each quality control chart,
namely, the CL, UCL, and LCL. No plotting is needed for this question. Same for the later questions.)
c) The manager wants to use the control chart(s) you have constructed in part (b) to check a new production line.
Table 2 below summaries the inspection results of 3 new samples drawn from the new process. Based on your
analysis, do you think the new process is in control overall?
Readings (in OHMS)
991
985
996
1009
1003
1015
1009
1005
994
982
996
1002
990
1002
1020
1019
1001
992
986
986
994
1008
998
993
1005
1020
996
Readings (in OHMS)
977
1025
996
980
986
986
1034
980
1021
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