WGU C207 FINAL SELF-ASSESSMENT Q&A 2024
ACTUAL EXAM QUESTIONS WITH DETAILED VERIFI
ANSWERS WITH RATIONALES A+ GRADE ASSURED
Question 1
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 becauseshe knows temperature is not data, but
temperature is
data.
• a) Nominal, Ordinal
• b) Nominal, Discrete
• c) Continuous, Discrete
• d) Discrete, Continuous
Feedback: The correct answer is D. Temperature is not a measure that comes in increments
(discrete) butis continuous as a temperature can be any number within a range.
Question 2
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.
, 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.
Question 3
A manager is looking at his previous quarter and determining the causes for the sudden
sales spike to gaina better understanding of the actions and outcomes. If using analytics,
which kindof analytics would the manager use?
• a) Predictive Analytics
• b) Prescriptive Analytics
• c) Descriptive Analytics
• d) Proactive Analytics
Feedback: The correct answer is C. The manager should use descriptive analytics
because it isused to describe the characteristics of what is being studied. In this situation,
the previous quarter sales would bestudied.
Question 4
In a study of cancer treatments, the subjects and the treatment allocator (who is also the
datagatherer) areunaware 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
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 nostated bias.
Question 5
, 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 thefollowing 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
Feedback: The correct answer is B. The thermometer consistently gives about the same
number for thefreezing 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.
Question 6
Toby is trying to determine the number of people at today's parade in order to determine the
impact of advertising at parades. He asks a number of different people leaving the parade their
projected number ofattendants. He gets the following responses: 70,000; 450,000; 2,000;
130,000;
3,000,000; 75,000;
200,000; 800,000; 150,000; and 210,000. Is this survey reliable? Is it valid?
• a) Reliable and Valid
• b) Reliable but not Valid
• c) Not Reliable but Valid
• d) Not Reliable or Valid
Feedback: The correct answer is D. The answers are not consistent and do not accurately
measure thenumber of people. Therefore it is not reliable or valid.
Question 7
, Harry is doing a survey of the city of Los Angeles' population. He is wondering everyone's
favorite food.He sends out a survey to all of the renters in the city and receives basically all
ofthe surveys back in the mail. What is the flaw in this experiment?
• a) Small Sample Size
• b) Blinding
• c) Truly Representative Sample
• d) Association vs. Causation
Feedback: The correct answer is C. This does not represent the entire population that
Harry isconcludingabout as he did not get responses from the other samples such as
homeowners inLos Angeles.
Question 8
Tom Brady is on the street in Chicago. He is asking anyone he meets if they prefer Tom Brady
or PeytonManning. The survey results show that people greatly prefer Tom Brady. What
is theflaw in this experiment?
• a) Small Sample Size
• b) Truly Representative Sample
• c) Response Bias
• d) Conscious Bias
Feedback: The correct answer is C. It is response bias, as the respondents might be
responding believingthat Tom Brady wants to hear that they prefer him over Peyton
Manning. This is not Conscious bias as conscious bias would be in the way Tom Brady is
asking a question and thisscenario does not indicate any bias in that way.
Question 9
There is a 50 percent chance that the president will slip on a banana peel. Also, there is
a 25 percent chance that the president will be hit in the face with an apple. There is a 10
percent chance that the president will slip on a banana peel and get hit in the face with
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