C207 DATA DRIVEN DECISION MAKING FINAL
EXAM 2025/2026 LATEST QUESTION AND
ANSWER WESTERN GOVERNORS UNIVERSITY
The participants are not told if they are in the treatment group or control group
Blind study
Describes characteristics of a dataset. Mean, median, mode, variation, standard deviation, range....
Descriptive analytics
Uses data from t he past to predict the future
Predictive
Uses experimental design and optimization to predict a future
Prescriptive
If we move to six appointments an hour we can increase revenue 2%. Which form of analytics is this?
Prescriptive - We are taking a specific course of action
Based on the last four quarters, we can predict $4,1 million in sales next quarter. Which form of
analytics is this?
Predictive: We aren't taking any action
The number of appointments per day averaged 7 over the last 6 months. Which form of
analytics is this?
Descriptive: We are only describing the past. No future predictions are made.
Is Big Data structured, unstructured or both?
Both
Not selecting a random sample is what type of bias?
Measurement
Not selecting a right sized sample is what type of bias?
Measurement
Research best practices eliminate...
Bias
Outliers create this type of error
, Out-of Range
Unpredictable error
Random Error - No correlation
Error may occur from missing data. (Example: Space not filled in)
Omission Error - Distorted results
This error repeats itself
Systematic Error - Skewed results
Observation points that are distant from other observations.
Outliers Note: Can be included or excluded in analysis (causes skewness)
Types of Bias: Bias that occurs from not selecting a random sample
Measurement bias
Types of Bias: Bias introduced because respondents believe it will be beneficial if selected.
Conscious bias (key word: benefit)
Consistent and repeatable data
Reliable
Resulting from accurate measurements
Valid data
If a responder lies on their survey, this creates what type of bias?
Information
Sorting your spreadsheet can expose these errors by moving them to the very top or the very bottom
of the column
Omission or Out-of-Range
An error that will fix itself over time
Random
An error that will not fix itself. You must do something
Systematic
Cleaning and organizing data
Data Management
Are the following variable quantitative or qualitative? Personality type, social class, or communication
style
EXAM 2025/2026 LATEST QUESTION AND
ANSWER WESTERN GOVERNORS UNIVERSITY
The participants are not told if they are in the treatment group or control group
Blind study
Describes characteristics of a dataset. Mean, median, mode, variation, standard deviation, range....
Descriptive analytics
Uses data from t he past to predict the future
Predictive
Uses experimental design and optimization to predict a future
Prescriptive
If we move to six appointments an hour we can increase revenue 2%. Which form of analytics is this?
Prescriptive - We are taking a specific course of action
Based on the last four quarters, we can predict $4,1 million in sales next quarter. Which form of
analytics is this?
Predictive: We aren't taking any action
The number of appointments per day averaged 7 over the last 6 months. Which form of
analytics is this?
Descriptive: We are only describing the past. No future predictions are made.
Is Big Data structured, unstructured or both?
Both
Not selecting a random sample is what type of bias?
Measurement
Not selecting a right sized sample is what type of bias?
Measurement
Research best practices eliminate...
Bias
Outliers create this type of error
, Out-of Range
Unpredictable error
Random Error - No correlation
Error may occur from missing data. (Example: Space not filled in)
Omission Error - Distorted results
This error repeats itself
Systematic Error - Skewed results
Observation points that are distant from other observations.
Outliers Note: Can be included or excluded in analysis (causes skewness)
Types of Bias: Bias that occurs from not selecting a random sample
Measurement bias
Types of Bias: Bias introduced because respondents believe it will be beneficial if selected.
Conscious bias (key word: benefit)
Consistent and repeatable data
Reliable
Resulting from accurate measurements
Valid data
If a responder lies on their survey, this creates what type of bias?
Information
Sorting your spreadsheet can expose these errors by moving them to the very top or the very bottom
of the column
Omission or Out-of-Range
An error that will fix itself over time
Random
An error that will not fix itself. You must do something
Systematic
Cleaning and organizing data
Data Management
Are the following variable quantitative or qualitative? Personality type, social class, or communication
style
