a. What is the value of x ? b. What is the value of R? c. What are the UCL, and LCL, using 3ơ?

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...
icon
Related questions
Question

s 6.7 is not answered, please answer S6.7

56.6 Sampling 4 pieces of precision-cut wire (to be used in
computer assembly) every hour for the past 24 hours has produced the
following results:
..
Hour
1
2
3
4
5
6
7
8
9
10
11
12
2
3
4
5
X
3.25"
3.10
Day
1
3.22
3.39
3.07
2.86
3.05
2.65
3.02
2.85
2.83
2.97
R
.71"
1.18
1.43
1.26
1.17
32
.53
1.13
.71
1.33
1.17
40
Hour
13
14
15
16
17
18
19
20
21
153.6
155.5
156.6
22
23
24
X
3.11"
2.83
3.12
2.84
2.86
2.74
3.41
2.89
2.65
3.28
a. What is the value of x ?
b. What is the value of R?
c. What are the UCL, and LCL, using 30?
2.94
2.64
Develop appropriate control charts and determine whether there is
any cause for concern in the cutting process. Plot the information and
look for patterns. P
R
.85"
1.31
1.06
50
1.43
1.29
1.61
..V S6.7 Auto pistons at Yongpin Zhou's plant in Shanghai are pro-
duced in a forging process, and the diameter is a critical factor that must
be controlled. From sample sizes of 10 pistons produced each day, the
mean and the range of this diameter have been as follows:
Mean (mm)
156.9
153.2
1.09
1.08
46
1.58
.97
Range (mm)
4.2
4.6
4.1
5.0
4.5
Transcribed Image Text:56.6 Sampling 4 pieces of precision-cut wire (to be used in computer assembly) every hour for the past 24 hours has produced the following results: .. Hour 1 2 3 4 5 6 7 8 9 10 11 12 2 3 4 5 X 3.25" 3.10 Day 1 3.22 3.39 3.07 2.86 3.05 2.65 3.02 2.85 2.83 2.97 R .71" 1.18 1.43 1.26 1.17 32 .53 1.13 .71 1.33 1.17 40 Hour 13 14 15 16 17 18 19 20 21 153.6 155.5 156.6 22 23 24 X 3.11" 2.83 3.12 2.84 2.86 2.74 3.41 2.89 2.65 3.28 a. What is the value of x ? b. What is the value of R? c. What are the UCL, and LCL, using 30? 2.94 2.64 Develop appropriate control charts and determine whether there is any cause for concern in the cutting process. Plot the information and look for patterns. P R .85" 1.31 1.06 50 1.43 1.29 1.61 ..V S6.7 Auto pistons at Yongpin Zhou's plant in Shanghai are pro- duced in a forging process, and the diameter is a critical factor that must be controlled. From sample sizes of 10 pistons produced each day, the mean and the range of this diameter have been as follows: Mean (mm) 156.9 153.2 1.09 1.08 46 1.58 .97 Range (mm) 4.2 4.6 4.1 5.0 4.5
Expert Solution
steps

Step by step

Solved in 3 steps with 2 images

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Practical Management Science
Practical Management Science
Operations Management
ISBN:
9781337406659
Author:
WINSTON, Wayne L.
Publisher:
Cengage,
Operations Management
Operations Management
Operations Management
ISBN:
9781259667473
Author:
William J Stevenson
Publisher:
McGraw-Hill Education
Operations and Supply Chain Management (Mcgraw-hi…
Operations and Supply Chain Management (Mcgraw-hi…
Operations Management
ISBN:
9781259666100
Author:
F. Robert Jacobs, Richard B Chase
Publisher:
McGraw-Hill Education
Business in Action
Business in Action
Operations Management
ISBN:
9780135198100
Author:
BOVEE
Publisher:
PEARSON CO
Purchasing and Supply Chain Management
Purchasing and Supply Chain Management
Operations Management
ISBN:
9781285869681
Author:
Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. Patterson
Publisher:
Cengage Learning
Production and Operations Analysis, Seventh Editi…
Production and Operations Analysis, Seventh Editi…
Operations Management
ISBN:
9781478623069
Author:
Steven Nahmias, Tava Lennon Olsen
Publisher:
Waveland Press, Inc.