WGU C207 Data Driven Decision Making Final Self
Assessment Exam Questions and Answers (Verified
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.
Discrete, Continuous
The first stage of Davenport and Kim's Three Stage Model of quantitative decision
making is to...
...frame the problem.
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?
Descriptive Analytics
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.
Double-Blind
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?
Reliable but not Valid
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.
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
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)
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?
Assessment Exam Questions and Answers (Verified
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.
Discrete, Continuous
The first stage of Davenport and Kim's Three Stage Model of quantitative decision
making is to...
...frame the problem.
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?
Descriptive Analytics
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.
Double-Blind
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?
Reliable but not Valid
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.
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
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)
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?
