Statistics Test 1
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Discrepany that exisits between a smaple statistic and the corresponding populatino paramenter
manipulate a varaiable
Measures two different variable to see if there is a relationship between them.
The varible that is manitpulated
Is the varable observed to assess the effect of a treatment
Separate categories. Whole Numbers.
infinite number of possible values
Consists of a set of categories that have different names.
Consists of a set of categories that are organized in an ordered sequence.
Consists of categories with exactly the same size intervals. Zero is abritary.
Same as interval but zero is the bottom.
Where the majority of the Data is on the left
where the majority of the Data is on the right
sert of individuals selected from a apopulation, ussally to represent the population.
# of objects in a set
Formula for Z- Score and what the variable stand for.
Z= [X - (MUE)]/(sigma)
- X = value given or reequest to find
- MUE = Average
- Sigma = Standard diviation
is a value that describes a sample
is a value that describes a population
The central tendency of a set of measurements is a
single score that represents the center of the distribution.
What does variablity measure?
How far values tend to be from the central tendency.
What would you like to do?
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