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1. STAYER MAT 510 Final Exam (3 Set, 100% Score) NEW
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Question 1
Improvement is needed for an organization to survive because:
Question 2
The Statistical Thinking Strategy has significant commonality
with the scientific method. Which of the following statistical
thinking principles is NOT generally associated with the
scientific method?
Question 3
Viewing a business as a system is important because:
Question 4
Improving the quality of process measurements is:
Question 5

2. Suppose the Problem Solving Framework were used to attack a
problem where the process in question was inherently stable.
Which of the following would be a likely result of this effort?
Question 6
The histogram below showing ages of credit card holders
displays what type of distribution?
Question 7
A main purpose of a control chart is to:
Question 8
The histogram has which of the following limitations?
Question 9
Non-random and unpredictable patterns on a control chart
indicate:
Question 10
A comparison between the Cp and Cpk for a process would find
which of the following to be true?
Question 11
A statistic that is used to indicate too much correlation between
the predictors in a regression analysis is called the:

3. Question 12
An Adjusted R-square value is a correlation coefficient that has
been modified to account for:
Question 13
Tips for building useful models include:
Question 14
The model residuals are examined to:
Question 15
Results of regression analysis are often abused in the following
ways:
Question 16
The basic reason for randomness of sampling in design of
experiments is:
Question 17
In every experiment there is experimental error. Which of the
following statements is true?
Question 18
An aspect of good experimental strategy is to study the effects
of the variables
(Xs) over a wide range. This strategy increases the chances that
effects will be found because:

4. Question 19
This technique is used to eliminate the effects of nuisance
factors (e.g., machines, day of week, and season of year) from
an experiment.
Question 20
A 32 experiment means that we are experimenting with:
Question 21
We ran a taste-test to see which soft drink employees in our
company prefer. We had 100 employees, selected as randomly
as possible, taste test two brands and determine which they
preferred. Which of the following would be a reasonable
statistical analysis to determine if there is a clear preference
among our employees?
Question 22
We are testing the null hypothesis that the average monthly
revenue between four insurance offices is the same. We
obtained a p-value of .07. Which of the following would be an
appropriate conclusion about the population?
Question 23
For which of the following scenarios am I most likely to utilize a
Chi-squared test?
Question 24

5. Which of the following could be considered a prediction
interval?
Question 25
I have made a mistake in copying data into my computer to
perform a large regression model with 20 independent
variables. Basically, I ended up with random data in each of the
columns. However, I accidentally ran the regression anyway.
Making reasonable assumptions, which of the following
outcomes is most likely?
MAT 510 Final Exam Set 2
• Question 1
In every experiment there is experimental error. Which of the
following statements is true?
• Question 2
This technique is used to eliminate the effects of nuisance
factors (e.g., machines, day of week, and season of year) from
an experiment.
• Question 3
An aspect of good experimental strategy is to study the effects
of the variables

6. (Xs) over a wide range. This strategy increases the chances that
effects will be found because:
• Question 4
A 32 experiment means that we are experimenting with:
• Question 5
Given the plot below, what might you suspect about factors A
and B?
• Question 6
Which type of variation was critical to resolving the realized
revenue case study?
• Question 7
Figure 2.15 displays a model of the statistics discipline,
showing the relationship between statistical thinking,
statistical engineering, and statistical methods and tools. Which
of the following is a principle illustrated by this model?
• Question 8
The model residuals are examined to:
• Question 9
A statistic that is used to indicate too much correlation between
the predictors in a regression analysis is called the:

7. • Question 10
The best way to evaluate the validity of a statistical model is:
• Question 11
George Box tells us “all models are wrong but some are useful”.
By this comment he means:
• Question 12
Models based on subject matter fundamentals (theory) are
generally better than statistical models for:
• Question 13
We are testing the null hypothesis that the average monthly
revenue between four insurance offices is the same. We
obtained a p-value of .07. Which of the following would be an
appropriate conclusion about the population?
• Question 14
I have calculated an interval to document the uncertainty in my
estimate of the long-term standard deviation I will experience
in time to pay invoices in my business going forward. Baaed on
this information, this should be considered what type of
interval?
• Question 15

8. After running an ANOVA comparing the average years of
experience between five different job classifications, we
obtained a p value of .02. Which of the following would be a
reasonable conclusion concerning the population in this case?
• Question 16
For which of the following scenarios am I most likely to utilize a
Chi-squared test?
• Question 17
Which of the following could be considered a prediction
interval?
• Question 18
Improvement is needed for an organization to survive because: