C207 - Final Self Assessment Exam

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C207 - Final Self Assessment Exam

2022/2023

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 The thermometer consistently gives about the same number for the freezing point and therefore is reliable. It is not valid because it does 1 / 2

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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(answer) 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(answer) 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(answer) Response

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