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Statistics Vocabulary Quiz 2
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What is an example of an Ordinal Variable?
 
All of the answers
 
Ranking of order: 1st place, 2nd place, 3rd place
 
Logical sequence based on attributes: Bachelor, Master, PHD
 
Military Rank
What is a Parameter?
 
A numerical characteristic of a population
 
A sample Statistic
 
A value below which a given percentage of observations fall
 
A value that divides a list of numbers into quarters
What is a Histogram?
 
A graph of data using bars of different heights for ranges
 
History Literature review
 
Video using multi-media techniques
 
None of the above
True or False: An Empty set contains no elements, denoted by { } or ∅.
True
What are examples of categorical data variables?
 
All of the answers
 
Political Party Designation
 
Animal Species, dog, cat, etc.
 
Data divided into categories or groups
True or False: Distribution is how variables are spread or dispersed across a range.
True
What is an interval level of measurement?
 
Measurement where values between variables has meaning
 
Variable Data can only be categorized
 
Variable Data can only be ranked
 
None of the above
What is an example of a continuous data variable?
 
All the answers
 
Time
 
Age
 
Temperature
What is a bell curve?
 
A graphical depiction of a normal distribution
 
A graphical depiction of a non-normal distribution
 
A qualitative technique
 
An ethnographic picture
What is the difference between the maximum and the minimum in a set of numbers?
 
Range
 
Variance
 
Standard Deviation
 
None of the above
The middle number in an ordered data set is:
 
Median
 
Mode
 
Variance
 
Mean
What is the average of a data set?
 
Mean
 
Mode
 
Median
 
standard deviation
What is the value that appears the most in a data set?
 
Mode
 
Mean
 
Median
 
Variance
What is the name of the variable controlled by the researcher?
 
Independent Variable
 
Confounding Variable
 
Discreet Variable
 
Continuous Variable
True or False: A dependent variable is the outcome researchers want to understand.
True
What is the Alternative Hypothesis?
 
All of the answers
 
Represented by H1 or Ha
 
Contradicts Null Hypothesis - a difference exists
 
What researchers aim to support in their research
True or False: The Null Hypothesis is a statement there is no significant difference or effect in the research observations.
True
What is a Hypothesis?
 
All of the answers
 
A testable and falsifiable statement
 
Uses in scientific research
 
Predictions that can be tested
What is a population?
 
The entire group of individuals, items or data points to whi
 
A particular set of data points
 
A subset of students
 
None of the above
What is a sample?
 
A subset of the population selected for analysis
 
Must be over 100 observations for Quant studies
 
Must be randomly selected
 
Only applicable to Qualitative Studies
What is a random sample?
 
All the answers
 
A subset of a larger population
 
Used to make statistical inferences about a population
 
Every member of a population has equal chance of inclusion
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