58) The XY matrix is used to identify inputs and outputs from a project that has been mapped.
59) The creation of an XY matrix involves determining relationship weights and importance
weights of inputs and output variables.
60) The P-value in the ANOVA table shows what variables ________.
A) need to be standardized
B) are redundant
C) are independent and identically distributed
D) significantly contribute to the variation
E) are out of control
61) Gauge R&R is used to determine the consistency and thickness of materials.
62) Improper gauge training, use, and calibration may result in problems in gauge measurements.
63) Using gauge R&R to verify measurements is a major step in the DMAIC analyze phase.
64) What is gauge R&R and what are some of reasons that can result in problems of
measurements?
65) The process of designing products so they are inherently defect-free and insensitive to
random variation is known as ________.
A) robust design
B) concept design
C) parameter design
D) tolerance design
E) finish design
66) The process of examining competing technologies to produce a product is known as
________.
A) robust design
B) concept design
C) parameter design
D) tolerance design
E) finish design
67) The process of selecting control factors and determining optimal levels for them is known as
________.
A) robust design
B) concept design
C) parameter design
D) tolerance design
E) finish design
68) The process of developing specification limits is known as ________.
A) robust design
B) concept design
C) parameter design
D) tolerance design
E) finish design
69) The Taguchi method focuses primarily on ________.
A) robust design
B) concept design
C) parameter design
D) tolerance design
E) finish design
70) In the Taguchi method, levels of parameters are also known as ________.
A) mixes
B) settings
C) factors
D) treatments
E) models
71) What is the Taguchi constant for a device that costs $300 to repair and a tolerance of plus or
minus 3 mm with a mean squared deviation from the target of 0.2?
A) 1.33
B) 7500
C) 67500
D) 300
E) 33.3
72) What is the Taguchi constant for a device that costs $400 to repair and a tolerance of plus or
minus 0.5 mm with a mean squared deviation from the target of 0.3?
A) 144
B) 450
C) 4400
D) 1600
E) 1100
73) What is the Taguchi constant for a device that costs $200 to repair and a tolerance of plus or
minus 0.25 mm with a mean squared deviation from the target of 0.6?
A) 1152
B) 556
C) 3200
D) 34.7
E) 55.6
74) What is the Taguchi constant for a device that costs $250 to repair and a tolerance of plus or
minus 2 mm with a mean squared deviation from the target of 0.2?
A) 2.5
B) 62.5
C) 2625
D) 2500
E) 6250
75) What is the Taguchi constant for a device that costs $500 to repair and a tolerance of plus or
minus 2 mm with a mean squared deviation from the target of 3?
A) 125
B) 1125
C) 55
D) 222
E) 532
76) The Taguchi constant for flooring materials is known to be $50/cm sq. and the cost to repair
them is $300. What is the tolerance interval?
A) 2.45 cm
B) 0.41 cm
C) 6.00 cm
D) 0.16 cm
E) 4.25 cm
77) The Taguchi constant for flooring materials is known to be $30/cm sq. and the cost to repair
them is $325. What is the tolerance interval?
A) 0.3 cm
B) 3.3 cm
C) 0.09 cm
D) 10.8 cm
E) 1.11 cm
78) The Taguchi constant for flooring materials is known to be $50/cm sq. and the tolerance is
25 plus or minus 0.6. What is the quality loss function for losses incurred as a result of deviation
from the target?
A) $1500
B) $83
C) $18
D) $125
E) $166
79) The Pitman arm on a car costs $105 to repair. Compute the quality loss function for losses
incurred as a result of deviation from a target where a tolerance of 10 mm plus or minus 0.15 mm
is required and the mean squared deviation from the target is (0.16)2.
A) 119
B) 47
C) 4101
D) 92
E) 29
80) The Pitman arm on a car costs $105 to repair. Compute the quality loss function for losses
incurred as a result of deviation from a target where a tolerance of 10 plus or minus 0.2 is
required and the mean squared deviation (V) from the target is (0.05)2.
A) 262.5
B) 6.6
C) 420.0
D) 168.5
E) 105.0
81) The Pitman arm on a car costs $105 to repair. Compute the quality loss function for losses
incurred as a result of deviation from a target where a tolerance of 10 plus or minus 0.8 is
required and the mean squared deviation (V) from the target is (0.25)2.
A) 16.40
B) 168.0
C) 10.25
D) 107.5
E) 26.25
82) The Pitman arm on a car costs $105 to repair. Compute the quality loss function for losses
incurred as a result of deviation from a target where a tolerance of 10 plus or minus 0.75 is
required and the mean squared deviation (V) from the target is (0.025)2.
A) 0.18
B) 5.83
C) 16.8
D) 0.12
E) 45.0
83) The Pitman arm on a car costs $105 to repair. Compute the quality loss function for losses
incurred as a result of deviation from a target where a tolerance of 10 plus or minus 0.125 is
required and the mean squared deviation (V) from the target is (0.33)2.
A) 672
B) 964
C) 158
D) 226
E) 732
84) The loss caused by deviation from the target standard is $15.47 per unit and the Taguchi
constant for the material is 247. What is the mean squared deviation (V) from the desired target
value?
A) (4.00)2
B) (7.50)2
C) (0.13)2
D) (3.67)2
E) (0.25)2
85) The loss caused by deviation from the target standard is $23.75 per unit and the Taguchi
constant for the material is 95. What is the mean squared deviation (V) from the desired target
value?
A) (0.50)2
B) (3.00)2
C) (0.10)2
D) (2.00)2
E) (1.50)2
86) The loss caused by deviation from the target standard is $13.75 per unit and the mean
squared deviation (V) from the target value is (0.30)2. What is the Taguchi constant?
A) 204
B) 75
C) 153
D) 115
E) 172
87) The loss caused by deviation from the target standard is $47.70 per unit and the mean
squared deviation (V) from the target value is (0.50)2. What is the Taguchi constant?
A) 249
B) 191
C) 642
D) 318
E) 452
88) The first step in the Taguchi process is ________.
A) problem identification
B) brainstorming session
C) experimental design
D) run experiment
E) analyze results
89) Variables that are under the control of management are called ________.
A) signal factors
B) noise factors
C) control factors
D) level factors
E) parameter factors
90) Variables that are uncontrollable are called ________.
A) signal factors
B) noise factors
C) control factors
D) level factors
E) parameter factors
91) Tools to maintain independence between successive trials of a Taguchi experiment are called
________.
A) replications
B) control factors
C) parameter factors
D) signal factors
E) orthogonal arrays
92) Concept design is the process of examining competing technologies to produce a product.
93) Parameter design refers to the selection of control factors and the determination of optimal
levels for each of the factors.
94) Tolerance design occurs before parameter design and is used to manipulate variables.
95) In Taguchi terms, ideal quality refers to a reference point or target value for determining the
quality level of a product or service.
96) The quality loss function focuses on the economic and societal penalties incurred as a result
of purchasing a nonconforming product.
97) Control factors are those variables in a process that management can manipulate.
98) What are the titles and roles of the key players in Six Sigma efforts?
99) What is robust design and what are the different types of design that compose it?
100) A Taguchi experiment is to be performed on the effects of lift, bore, stroke, and
compression on engine performance with horsepower as the outcome variable. The factors were
tested at each of the following levels in hopes of improving engine horsepower.
Lift (L)
2.75
2.90
Bore (B)
0.10
0.30
Stroke (S)
0.50
0.60
Compression (C)
8.50
12.00
The following experiment was used and the results of all trials are as follows:
Trial
L
B
S
C
Response
1
1
1
1
1
384
2
2
1
1
2
285
3
1
2
1
2
341
4
2
2
1
1
322
5
1
1
2
2
401
6
2
1
2
1
259
7
1
2
2
1
310
8
2
2
2
2
375
Determine the best levels for each factor and state your conclusions.
101) Briefly describe each of the Taguchi design perspectives. Which of the four perspectives
does the Taguchi method focus on?