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C207 - DATA-DRIVEN DECISION MAKING
QUESTIONS WITH DETAILED VERIFIED
ANSWERS
There are two types of statistics (Analytics) Ans: 1. Descriptive
2. Inferential
Descriptive statistics are used to _________ Ans: Inform; Explain
Inferential statistics are used to ______ Ans: Predict/Show trend
Name the 4 levels of measurement Ans: 1. NOIR (Nominal)
2. Ordinal
3. Interval
Ratio
Continuous data with unique zero point (Level of Measurement) Ans:
Ratio
Orders data at EQUAL distance apart (Level of Measurement) Ans:
Interval
Place quantitative objects in some kind of order (Level of Measurement)
Ans: Ordinal
Identify, Group, or Categorize (Level of Measurement) Ans: Nominal
Outliers create this type of error Ans: Out-of-Range
Unpredictable error/No correlation Ans: Random Error
Error may occur from missing data. (EX: Space not filled in); Distorted
results Ans: Omission Error
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This error repeats itself; Skewed results Ans: Systematic Error
What is the process of quality control? Ans: To reduce and minimize
errors
All variable measurements and manipulations are under the researcher's
control (Type of Studies) Ans: Experimental Study
Used when impractical or impossible to control the conditions of the study
(Type of Studies) Ans: Observational Study
Participants are not told if they are in the treatment group or control
group Ans: Blind Study
The procedure the researcher applies to each subject Ans: Treatment
The treatment allocator or the participants do NOT know who is in the
treatment group or control group Ans: Double blind study
Questions favor an outcome, or the interviewer ask questions that favor
an outcome (bias) Ans: Information Bias
The average outcome (payoff) when the future includes scenarios that
may or may not happen Ans: Expected Monetary Value (EMV)
Observation points that are distant form other observations; Can be
included or excluded in analysis (causes skewness) Ans: Outliers
Bias that occurs from not selecting a random sample Ans: Measurement
bias
Bias introduced because respondents believe it will be beneficial if
selected Ans: Conscious bias
Middle score for a set of data (Descriptive Statistic Measurement) Ans:
MEDIAN
Tells us the number of standard deviations a data point is from the mean
Ans: Z-SCORE
C207 - DATA-DRIVEN DECISION MAKING
QUESTIONS WITH DETAILED VERIFIED
ANSWERS
There are two types of statistics (Analytics) Ans: 1. Descriptive
2. Inferential
Descriptive statistics are used to _________ Ans: Inform; Explain
Inferential statistics are used to ______ Ans: Predict/Show trend
Name the 4 levels of measurement Ans: 1. NOIR (Nominal)
2. Ordinal
3. Interval
Ratio
Continuous data with unique zero point (Level of Measurement) Ans:
Ratio
Orders data at EQUAL distance apart (Level of Measurement) Ans:
Interval
Place quantitative objects in some kind of order (Level of Measurement)
Ans: Ordinal
Identify, Group, or Categorize (Level of Measurement) Ans: Nominal
Outliers create this type of error Ans: Out-of-Range
Unpredictable error/No correlation Ans: Random Error
Error may occur from missing data. (EX: Space not filled in); Distorted
results Ans: Omission Error
, Page | 2
This error repeats itself; Skewed results Ans: Systematic Error
What is the process of quality control? Ans: To reduce and minimize
errors
All variable measurements and manipulations are under the researcher's
control (Type of Studies) Ans: Experimental Study
Used when impractical or impossible to control the conditions of the study
(Type of Studies) Ans: Observational Study
Participants are not told if they are in the treatment group or control
group Ans: Blind Study
The procedure the researcher applies to each subject Ans: Treatment
The treatment allocator or the participants do NOT know who is in the
treatment group or control group Ans: Double blind study
Questions favor an outcome, or the interviewer ask questions that favor
an outcome (bias) Ans: Information Bias
The average outcome (payoff) when the future includes scenarios that
may or may not happen Ans: Expected Monetary Value (EMV)
Observation points that are distant form other observations; Can be
included or excluded in analysis (causes skewness) Ans: Outliers
Bias that occurs from not selecting a random sample Ans: Measurement
bias
Bias introduced because respondents believe it will be beneficial if
selected Ans: Conscious bias
Middle score for a set of data (Descriptive Statistic Measurement) Ans:
MEDIAN
Tells us the number of standard deviations a data point is from the mean
Ans: Z-SCORE
