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Multiple Choices:
Q1. Calculate the estimated variance of the population from which the
following values have been randomly selected: 2.8 2.7 2.6 2.9 2.8 2.8 2.8.
a. 095
b. 009
c. 088
d. 008
Q2. The
mean, median and mode of a distribution have the same value. What can be said
about the distribution?
a. It is
exponential
b. It is
normal
c. It is
uniform
d. None of
the above
Q3.
Approximately what percent of the data values are smaller than the mean?
a. 25%
b. 50%
c. 75%
d. None of
above
Q4. A normal
probability plot is used to:
a. Determine
whether the distribution is normal
b. Plot Z
value
c. Determine
process capability
d. It
percent out of specification
Q5. Nominal
Group technique is used to:
a. Help a
group reach consensus
b. Generate
a group on new ideas
c. Provide a
consistent stable group leadership
d. Provide a
name for the group
Q6. An
example of a project metric would be:
a. The
decrease in defect occurrence
b. The
decrease in product cost
c. The
decrease in cycle time
d. All the
above
Q7. A
correct statement about the relationship between the terms parameter and
statistic is:
a. A
population statistic is more accurate than a parameter
b. A sample
parameter is used to estimate a statistic
c. A sample
statistic is used to estimate a population parameter
d. Standard
deviation calculation requires both statistics and parameters
Q8. A and B
are events. P(A) = 0.80 and P(B) = 0.90:
a. Events A
and B are disjoint or mutually exclusive
b. Events A
and B are not disjoint or mutually exclusive
c. P (A and
B) = 0
d. P(A and
B) = 1.7
Q9. In a
certain sampling situation, a=0, b=0.08. the power of the sampling plan this
case is:
a. 0
b. 0.08
c. 1.00
d. 0.92
Q10. A
newspaper article describes a high positive correlation between obesity and
orange juice consumption among six-year-old children’s. Parents who restrict
the use of orange juice for their children have:
a. Made a
type I error
b. Made a
type II error
c.
Misunderstood margin of error
d. Confused
correlation with causation
Q11. In an
experimental design context, replications refer to:
a.
Duplicating experimental result at another location
b. Repeating
a test with the same factor levels
c. Obtaining
the same or similar result from different factors
d. Repeating
an experiment but using at least one different factor level
Q12. Find
the upper control limit for a range chart if n=4 and the average range is
2.282.
a. 2.282
b. 4.564
c. 5.208
d. 3.423
Q13. An
x-bar control chart been established with control limits of 3.245 and 3.257,
n=5. An engineer collects the following sample and plots the average on the
control chart: 3.257, 3.256, 3.258, 3.259
a. The
process is out of control
b. The
process is not out of control
c. The
engineer misused the control chart
d. The
control limits are incorrect
Q14. TEIZ is
an acronym which refers to:
a. A set of
problem solving tools
b. An
organization of quality professionals
c. An
experiment using transitional results
d. A Russian
general responsible for creative thinking
Q15. A
robust design is one which;
a. Has high
reliability
b. Has low
maintenance frequency
c. Is simple
to manufacture’
d. Is
resistant to varying environmental condition
Q16. A
frequent cause of system sub optimization is:
a.
Optimizing individual process
b. Failing
to draw a system flow chart
c. Using
data with outliers
d. Failing
to consider the normal distribution
Q17. The x2
distribution is:
a. Symmetric
b. Left
skewed
c. Right
skewed
d. Normal
Q18. An
advantage of using standard deviation rather than range for measuring dispersion
of a large sample is that:
a. Standard
deviation has a simpler formula
b.
Calculators have a standard deviation key but not a range Key
c. Standard
deviation uses information from each measurement
d. Range
calculation are not normally distributed
Q19. The
team development stage characterized by expression of individual opinions and
ideas often without regard for team objectives is known as:
a.
Performing
b. Norming
c.
Conflicting
d. Storming
Q20. SMED is
an acronym for activity that:
a. Involve
housekeeping in the work area
b. Makes
mistake of a certain type impossible
c.
Emphasizes the pull of the customer
d. Reduces
set up the time
Q21. A
principle advantage of fractional factorial experimental designs is:
a. Reduced
cost
b. Improved
accuracy
c. Increased
confounding
d. Higher
confidence level
Q22. Dr. W
Edwards Deming:
a. Lectured
in Japan after World War II
b. Was an
author of several books in the US
c. Is
considered an expert in the quality field
d. All of
the above
Part Two:
Q23. What
percent of population falls below the lower specification limits?
a. 9.18%
b. 22.66%
c. 6.68%
d. 1.83%
Q24. Find
the mean, median and mode of the following data set: 9, 11, 12, 14, 18, 18, 18,
20, and 23:
a. 15.5, 18,
18
b. 15, 14, 18
c. 15, 12,
18
d. 15.5, 16,
18
Use for
problems 25-27:A B Res.
Q25.
Calculate the main effect of factor A:
a. 20
b. 25
c. 30
d. None of
the above
Q26.
Calculate the interaction effect:
a. 20
b. 25
c. 40
d. None of
the above
Q27. If it
is desirable to maximize the response R, the following levels should be used:
a. A+ and B+
b. A+ and B
c.A- and B+
d. None of
the above
Q28. This
experimental design is:
a. Full
factorial
b. Half
factorial
c. Quarter
factorial
d. None of
the above
Q29. The
number of factors, levels and replications:
a. 3, 3, 3
b. 3, 2, 2
c. 3, 2, 3
d. None of
the above
Q30. An
indication of the experimental error is available because the design has:
a. Multiple
replications
b. Multiple
levels
c. Multiple
factors
d. None of
the above
Q31. The
average number of defects is 21.6. Find the upper control limit for the
C-chart.
a. 26.4
b. 24.6
c. 26.2
d. None of
the above
Q32. Briefly
define Affinity Diagram with an example.
Q33. By
using imaginary figures draw a Run Chart.
Q34.
Consider the following data & develop a normal probability graph paper
& normal probability plot:7.9, 9.7, 10.6, 12.7, 12.8, 18.1, 21.2, 33.0,
43.5, 51.1, 81.4, 93.1
Q35. A
painting process produces coatings with a thickness of 0.0005 & a standard
deviation of 0.00002. What should the tolerance limits be for this process?
Briefly explain Tolerance design?
Q36. What is
Pugh matrix? State the steps which are used in Pugh matrix.
Q37. Define
& describe the purpose of root cause analysis? Recognize the issues
involved in identifying a root cause analysis and list various tools for
resolving chronic problem?
Q38.
Describe the purpose & elements of FMEA including risk priority number
(RPN), and evaluate FMEA results for processes, products, & services.
Distinguish between design FMEA (DFMEA) & process FMEA (PFMEA) and
interpret results from each.
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