WGU C207 OA Final Self-Assessment
Questions And Correct Answers
Amanda is measuring the temperature. She looks at the thermometer and sees that it is
somewhere between 65 and 66 degrees Fahrenheit. She is okay with the temperature in
between two integers because she knows temperature is not ________ data, but
temperature is _________ data.
a Nominal, Ordinal
b Nominal, Discrete
c Continuous, Discrete
d Discrete, Continuous
d Discrete, Continuous
Feedback: The correct answer is D. Temperature is not a measure that comes in
increments (discrete) but is continuous as a temperature can be any number within a
range.
The first stage of Davenport and Kim's Three-Stage Model of quantitative decision
making is to
a communicate the results.
b frame the problem.
c solve the problem.
,d None of the above.
b frame the problem.
Feedback: The correct answer is B. It is important to frame the problem by
understanding the environment of a problem. After that, one can solve the problem and
communicate the results to others.
A manager is looking at his previous quarter and determining the causes for the sudden
sales spike to gain a better understanding of the actions and outcomes. If using
analytics, which kind of analytics would the manager use?
a Predictive Analytics
b Prescriptive Analytics
c Descriptive Analytics
d Proactive Analytics
c Descriptive Analytics
Feedback: The correct answer is C. The manager should use descriptive analytics
because it is used to describe the characteristics of what is being studied. In this
situation, the previous quarter sales would be studied.
In a study of cancer treatments, the subjects and the treatment allocator (who is also
the data gatherer) are unaware of which treatment is being given to which subject. This
is a ____________ study.
, a Double-Blind
b Triple-Blind
c Information-biased
d Response-biased
a Double-Blind
Feedback: The correct answer is A. There are two layers being blinded in this study. If
the treatment allocator and the data gatherer were different people, then this would be
a triple-blind study. There is no stated bias.
Adam is measuring the temperature as the lake outside his office is freezing over. He
measures the temperatures in Fahrenheit ten times with the same thermometer and
gets the following results: 20, 21, 21, 20, 20, 19, 19, 21, 20, 19. Is his thermometer
reliable? Is it valid?
a Reliable and Valid
b Reliable but not Valid
c Not Reliable but Valid
d Not Reliable or Valid
b Reliable but not Valid
Feedback: The correct answer is B. The thermometer consistently gives about the same
number for the freezing point and therefore is reliable. It is not valid because it does not
accurately measure what it is trying to measure. We know this because we know water
freezes at 32 degrees Fahrenheit.
Questions And Correct Answers
Amanda is measuring the temperature. She looks at the thermometer and sees that it is
somewhere between 65 and 66 degrees Fahrenheit. She is okay with the temperature in
between two integers because she knows temperature is not ________ data, but
temperature is _________ data.
a Nominal, Ordinal
b Nominal, Discrete
c Continuous, Discrete
d Discrete, Continuous
d Discrete, Continuous
Feedback: The correct answer is D. Temperature is not a measure that comes in
increments (discrete) but is continuous as a temperature can be any number within a
range.
The first stage of Davenport and Kim's Three-Stage Model of quantitative decision
making is to
a communicate the results.
b frame the problem.
c solve the problem.
,d None of the above.
b frame the problem.
Feedback: The correct answer is B. It is important to frame the problem by
understanding the environment of a problem. After that, one can solve the problem and
communicate the results to others.
A manager is looking at his previous quarter and determining the causes for the sudden
sales spike to gain a better understanding of the actions and outcomes. If using
analytics, which kind of analytics would the manager use?
a Predictive Analytics
b Prescriptive Analytics
c Descriptive Analytics
d Proactive Analytics
c Descriptive Analytics
Feedback: The correct answer is C. The manager should use descriptive analytics
because it is used to describe the characteristics of what is being studied. In this
situation, the previous quarter sales would be studied.
In a study of cancer treatments, the subjects and the treatment allocator (who is also
the data gatherer) are unaware of which treatment is being given to which subject. This
is a ____________ study.
, a Double-Blind
b Triple-Blind
c Information-biased
d Response-biased
a Double-Blind
Feedback: The correct answer is A. There are two layers being blinded in this study. If
the treatment allocator and the data gatherer were different people, then this would be
a triple-blind study. There is no stated bias.
Adam is measuring the temperature as the lake outside his office is freezing over. He
measures the temperatures in Fahrenheit ten times with the same thermometer and
gets the following results: 20, 21, 21, 20, 20, 19, 19, 21, 20, 19. Is his thermometer
reliable? Is it valid?
a Reliable and Valid
b Reliable but not Valid
c Not Reliable but Valid
d Not Reliable or Valid
b Reliable but not Valid
Feedback: The correct answer is B. The thermometer consistently gives about the same
number for the freezing point and therefore is reliable. It is not valid because it does not
accurately measure what it is trying to measure. We know this because we know water
freezes at 32 degrees Fahrenheit.
