WGU C207 Data Driven Decision Making EXAM 188
QUESTIONS WITH CORRECT DETAILED ANSWERS
Frame the Problem, Solving the Problem and Communicating Results
are part of which decision making model? - ANSWER-Davenport-Kim
three-stage model
In which stage of the Davenport-Kim model is problem recognition? -
ANSWER-Framing the problem
In which stage of the Davenport-Kim model is data collection? -
ANSWER-Solving the problem
What is a key reason we study statistics? - ANSWER-To make informed
decisions
Visually presenting the data assists in which stage of the Davenport-Kim
model? - ANSWER-Communicating the results
When does research fail to produce reliable results? - ANSWER-Poor
research validity
What are the two major issues surrounding research standards? -
ANSWER-Best practices and ethics
In order to be a statistically valid sample, the sample must be: -
ANSWER-The appropriate size and random
, WGU C207 Data Driven Decision Making EXAM 188
QUESTIONS WITH CORRECT DETAILED ANSWERS
Not selecting a random sample is what type of bias? - ANSWER-
Measurement
Not selecting a right sized sample is what type of bias? - ANSWER-
Measurement
Research best practices eliminate... - ANSWER-Bias
Outliers create this type of error - ANSWER-Out-of Range
Unpredictable error - ANSWER-Random Error - No correlation
Error may occur from missing data. (Example: Space not filled in) -
ANSWER-Omission Error - Distorted results
This error repeats itself - ANSWER-Systematic Error - Skewed results
Observation points that are distant from other observations. - ANSWER-
Outliers Note: Can be included or excluded in analysis (causes
skewness)
Types of Bias: Bias that occurs from not selecting a random sample -
ANSWER-Measurement bias
, WGU C207 Data Driven Decision Making EXAM 188
QUESTIONS WITH CORRECT DETAILED ANSWERS
Types of Bias: Bias introduced because respondents believe it will be
beneficial if selected. - ANSWER-Conscious bias (key word: benefit)
Consistent and repeatable data - ANSWER-Reliable
Resulting from accurate measurements - ANSWER-Valid data
If a responder lies on their survey, this creates what type of bias? -
ANSWER-Information
Sorting your spreadsheet can expose these errors by moving them to the
very top or the very bottom of the column - ANSWER-Omission or Out-
of-Range
An error that will fix itself over time - ANSWER-Random
An error that will not fix itself. You must do something - ANSWER-
Systematic
Cleaning and organizing data - ANSWER-Data Management
Are the following variable quantitative or qualitative? Personality type,
social class, or communication style - ANSWER-Qualitative
QUESTIONS WITH CORRECT DETAILED ANSWERS
Frame the Problem, Solving the Problem and Communicating Results
are part of which decision making model? - ANSWER-Davenport-Kim
three-stage model
In which stage of the Davenport-Kim model is problem recognition? -
ANSWER-Framing the problem
In which stage of the Davenport-Kim model is data collection? -
ANSWER-Solving the problem
What is a key reason we study statistics? - ANSWER-To make informed
decisions
Visually presenting the data assists in which stage of the Davenport-Kim
model? - ANSWER-Communicating the results
When does research fail to produce reliable results? - ANSWER-Poor
research validity
What are the two major issues surrounding research standards? -
ANSWER-Best practices and ethics
In order to be a statistically valid sample, the sample must be: -
ANSWER-The appropriate size and random
, WGU C207 Data Driven Decision Making EXAM 188
QUESTIONS WITH CORRECT DETAILED ANSWERS
Not selecting a random sample is what type of bias? - ANSWER-
Measurement
Not selecting a right sized sample is what type of bias? - ANSWER-
Measurement
Research best practices eliminate... - ANSWER-Bias
Outliers create this type of error - ANSWER-Out-of Range
Unpredictable error - ANSWER-Random Error - No correlation
Error may occur from missing data. (Example: Space not filled in) -
ANSWER-Omission Error - Distorted results
This error repeats itself - ANSWER-Systematic Error - Skewed results
Observation points that are distant from other observations. - ANSWER-
Outliers Note: Can be included or excluded in analysis (causes
skewness)
Types of Bias: Bias that occurs from not selecting a random sample -
ANSWER-Measurement bias
, WGU C207 Data Driven Decision Making EXAM 188
QUESTIONS WITH CORRECT DETAILED ANSWERS
Types of Bias: Bias introduced because respondents believe it will be
beneficial if selected. - ANSWER-Conscious bias (key word: benefit)
Consistent and repeatable data - ANSWER-Reliable
Resulting from accurate measurements - ANSWER-Valid data
If a responder lies on their survey, this creates what type of bias? -
ANSWER-Information
Sorting your spreadsheet can expose these errors by moving them to the
very top or the very bottom of the column - ANSWER-Omission or Out-
of-Range
An error that will fix itself over time - ANSWER-Random
An error that will not fix itself. You must do something - ANSWER-
Systematic
Cleaning and organizing data - ANSWER-Data Management
Are the following variable quantitative or qualitative? Personality type,
social class, or communication style - ANSWER-Qualitative
