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WGU C207 OA Final Self-Assessment Q&A 2023-2024
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Amanda is measuring the temperature. She looks at the thermometer and sees that it is somewhere
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between 65 and 66 degrees Fahrenheit. She is okay with the temperature in between two integers because
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she knows temperature is not data, but temperature is data.
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• a) Nominal, Ordinal
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b) Nominal, Discrete
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• c) Continuous, Discrete
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• d) Discrete, Continuous
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Feedback: The correct answer is D. Temperature is not a measure that comes in increments (discrete) but
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is continuous as a temperature can be any number within a range.
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Question 2
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The first stage of Davenport and Kim's Three-Stage Model of quantitative decision making is to
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• a) communicate the results.
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b) frame the problem.
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• c) solve the problem.
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d) None of the above.
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Feedback: The correct answer is B. It is important to frame the problem by understanding the
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environment of a problem. After that, one can solve the problem and communicate the results to others.
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Question 3
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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
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manager use?
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a) Predictive Analytics
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• b) Prescriptive Analytics
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c) Descriptive Analytics
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• d) Proactive Analytics
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Feedback: The correct answer is C. The manager should use descriptive analytics because it is used to
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describe the characteristics of what is being studied. In this situation, the previous quarter sales would be
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studied.
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Question 4
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In a study of cancer treatments, the subjects and the treatment allocator (who is also the data gatherer) are
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unaware of which treatment is being given to which subject. This is a study.
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• a) Double-Blind
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• b) Triple-Blind
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• c) Information-biased
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• d) Response-biased
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Feedback: The correct answer is A. There are two layers being blinded in this study. If the treatment
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allocator and the data gatherer were different people, then this would be a triple-blind study. There is no
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stated bias.
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Question 5
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Adam is measuring the temperature as the lake outside his office is freezing over. He measures the
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temperatures in Fahrenheit ten times with the same thermometer and gets the following results: 20, 21,
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21, 20, 20, 19, 19, 21, 20, 19. Is his thermometer reliable? Is it valid?
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• a) Reliable and Valid
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b) Reliable but not Valid
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• c) Not Reliable but Valid
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• d) Not Reliable or Valid
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Feedback: The correct answer is B. The thermometer consistently gives about the same number for the
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freezing point and therefore is reliable. It is not valid because it does not accurately measure what it is
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trying to measure. We know this because we know water freezes at 32 degrees Fahrenheit.
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Question 6
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Toby is trying to determine the number of people at today's parade in order to determine the impact of
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advertising at parades. He asks a number of different people leaving the parade their projected number of
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attendants. He gets the following responses: 70,000; 450,000; 2,000; 130,000; 3,000,000; 75,000;
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200,000; 800,000; 150,000; and 210,000. Is this survey reliable? Is it valid?
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• a) Reliable and Valid
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b) Reliable but not Valid
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• c) Not Reliable but Valid
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d) Not Reliable or Valid
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Feedback: The correct answer is D. The answers are not consistent and do not accurately measure the
number of people. Therefore it is not reliable or valid.
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Question 7
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Harry is doing a survey of the city of Los Angeles' population. He is wondering everyone's favorite food.
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He sends out a survey to all of the renters in the city and receives basically all of the surveys back in the
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mail. What is the flaw in this experiment? sh
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• a) Small Sample Size
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b) Blinding
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• c) Truly Representative Sample
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• d) Association vs. Causation
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Feedback: The correct answer is C. This does not represent the entire population that Harry is concluding
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about as he did not get responses from the other samples such as homeowners in Los Angeles.
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Question 8
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Tom Brady is on the street in Chicago. He is asking anyone he meets if they prefer Tom Brady or Peyton
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Manning. The survey results show that people greatly prefer Tom Brady. What is the flaw in this
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experiment?
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WGU C207 OA Final Self-Assessment Q&A 2023-2024
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tz
sh
Sp
ne
la
tz
sh
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ne
la
tz
sh
Sp
Amanda is measuring the temperature. She looks at the thermometer and sees that it is somewhere
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between 65 and 66 degrees Fahrenheit. She is okay with the temperature in between two integers because
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she knows temperature is not data, but temperature is data.
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Sp
• a) Nominal, Ordinal
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•
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b) Nominal, Discrete
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• c) Continuous, Discrete
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• d) Discrete, Continuous
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Feedback: The correct answer is D. Temperature is not a measure that comes in increments (discrete) but
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is continuous as a temperature can be any number within a range.
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Question 2
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The first stage of Davenport and Kim's Three-Stage Model of quantitative decision making is to
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• a) communicate the results.
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b) frame the problem.
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• c) solve the problem.
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•
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d) None of the above.
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Feedback: The correct answer is B. It is important to frame the problem by understanding the
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environment of a problem. After that, one can solve the problem and communicate the results to others.
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sh
Sp
Question 3
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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
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manager use?
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a) Predictive Analytics
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• b) Prescriptive Analytics
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c) Descriptive Analytics
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• d) Proactive Analytics
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Feedback: The correct answer is C. The manager should use descriptive analytics because it is used to
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describe the characteristics of what is being studied. In this situation, the previous quarter sales would be
la
studied.
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sh
Sp
Question 4
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In a study of cancer treatments, the subjects and the treatment allocator (who is also the data gatherer) are
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unaware of which treatment is being given to which subject. This is a study.
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• a) Double-Blind
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• b) Triple-Blind
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• c) Information-biased
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• d) Response-biased
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Feedback: The correct answer is A. There are two layers being blinded in this study. If the treatment
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allocator and the data gatherer were different people, then this would be a triple-blind study. There is no
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stated bias.
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Question 5
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Adam is measuring the temperature as the lake outside his office is freezing over. He measures the
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temperatures in Fahrenheit ten times with the same thermometer and gets the following results: 20, 21,
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21, 20, 20, 19, 19, 21, 20, 19. Is his thermometer reliable? Is it valid?
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• a) Reliable and Valid
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b) Reliable but not Valid
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• c) Not Reliable but Valid
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• d) Not Reliable or Valid
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Feedback: The correct answer is B. The thermometer consistently gives about the same number for the
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freezing point and therefore is reliable. It is not valid because it does not accurately measure what it is
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trying to measure. We know this because we know water freezes at 32 degrees Fahrenheit.
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Question 6
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Toby is trying to determine the number of people at today's parade in order to determine the impact of
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advertising at parades. He asks a number of different people leaving the parade their projected number of
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attendants. He gets the following responses: 70,000; 450,000; 2,000; 130,000; 3,000,000; 75,000;
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200,000; 800,000; 150,000; and 210,000. Is this survey reliable? Is it valid?
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• a) Reliable and Valid
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•
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b) Reliable but not Valid
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• c) Not Reliable but Valid
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d) Not Reliable or Valid
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Feedback: The correct answer is D. The answers are not consistent and do not accurately measure the
number of people. Therefore it is not reliable or valid.
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sh
Question 7
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Harry is doing a survey of the city of Los Angeles' population. He is wondering everyone's favorite food.
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He sends out a survey to all of the renters in the city and receives basically all of the surveys back in the
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mail. What is the flaw in this experiment? sh
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• a) Small Sample Size
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b) Blinding
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• c) Truly Representative Sample
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• d) Association vs. Causation
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Feedback: The correct answer is C. This does not represent the entire population that Harry is concluding
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about as he did not get responses from the other samples such as homeowners in Los Angeles.
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Question 8
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Tom Brady is on the street in Chicago. He is asking anyone he meets if they prefer Tom Brady or Peyton
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Manning. The survey results show that people greatly prefer Tom Brady. What is the flaw in this
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experiment?
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