wgu c207 data driven decision making final exam questions and answers 20222023 verified answers
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C207 - Final Self Assessment
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 because she knows
tem- perature is not data, but temperature is data.: Answer-
Discrete, Continuous
2. The first stage of Davenport and Kim's Three Stage Model of
quantitative decision making is to...: Answer- ...frame the problem.
3. 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?: Answer- Descriptive Analytics
4. 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.: Answer- Double-Blind
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 the following results: 20, 18, 21, 20, 20,
14, 19, 21, 20, 19. Is his thermometer reliable? Is it valid?: Answer-
Reliable but not Valid
1/4
, 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.
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 of
attendants. 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?: Not Reliable or Valid
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
home-owners and renters in the city and receives basically all of the
surveys back in the mail. What is the flaw with this experiment?: Truly
Representative Sample (doesn't include the homeless)
8. Tom Brady is on the street in Chicago. He is asking anyone he meets if
they prefer Tom Brady or Peyton Manning. The survey results show that
people greatly prefer Tom Brady. What is the flaw with this experiment?:
Response
2/4
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