INTRO. STATISTICAL QUALITY CONTROL
13th Edition
ISBN: 9781118909447
Author: Montgomery
Publisher: WILEY
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Textbook Question
Chapter 1, Problem 21DQE
Explain why it is necessary to consider variability around the
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The following ordered data list shows the data speeds for cell phones used by a
telephone company at an airport:
A. Calculate the Measures of Central Tendency from the ungrouped data list.
B. Group the data in an appropriate frequency table.
C. Calculate the Measures of Central Tendency using the table in point B.
0.8
1.4
1.8
1.9
3.2
3.6
4.5
4.5
4.6
6.2
6.5
7.7
7.9
9.9
10.2
10.3
10.9
11.1
11.1
11.6
11.8
12.0
13.1
13.5
13.7
14.1
14.2
14.7
15.0
15.1
15.5
15.8
16.0
17.5
18.2
20.2
21.1
21.5
22.2
22.4
23.1
24.5
25.7
28.5
34.6
38.5
43.0
55.6
71.3
77.8
II Consider the following data matrix X:
X1
X2
0.5
0.4
0.2 0.5
0.5
0.5
10.3 10
10.1 10.4
10.1
10.5
What will the resulting clusters be when using the k-Means method with k = 2. In your own words, explain why this result is
indeed expected, i.e. why this clustering minimises the ESS map.
why the answer is 3 and 10?
Chapter 1 Solutions
INTRO. STATISTICAL QUALITY CONTROL
Ch. 1 - Why is it difficult to define quality?Ch. 1 - Briefly discuss the eight dimensions of quality....Ch. 1 - Is there a difference between quality for a...Ch. 1 - Can an understanding of the multidimensional...Ch. 1 - What are the internal customers of a business? Why...Ch. 1 - Is the Deming philosophy more or less focused on...Ch. 1 - What is the Juran Trilogy?Ch. 1 - What are the three primary technical tools used...Ch. 1 - Distinguish among quality planning, quality...Ch. 1 - What is the Malcolm Baldrige National Quality...
Ch. 1 - Who was Walter A. Shewhart?Ch. 1 - What is meant by the cost of quality?Ch. 1 - Are internal failure costs more or less important...Ch. 1 - What is a Six Sigma process?Ch. 1 - Discuss the statement Quality is the...Ch. 1 - Compare and contrast Demings and Jurans...Ch. 1 - What would motivate a business to compete for the...Ch. 1 - What are the three components of the ISO 9000:2005...Ch. 1 - Explain why it is necessary to consider...Ch. 1 - Reconsider the fast-food restaurant visit...Ch. 1 - What is the Toyota Production System?Ch. 1 - What were Henry Fords contributions to quality?Ch. 1 - What are the objectives of a supplier development...
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