Chapter 14 Flashcards
1
Q
Association analysis
A
Establish whether stable relationships exist between two variables
2
Q
AA: Is there a relationship between age and coffee purchased
A
Age and coffee purchased
3
Q
Correlation coefficient define
A
An index number constrained to fall between the range of -1.0 to +1.0
4
Q
Correlation coefficient sign indication
A
The sign indicate the direction of the association
5
Q
Correlation coefficient size indication
A
The size indicates the strength of the association between the two
6
Q
We find in a study that the correlation between age and amount of coffee purchased in a week is -0.85
A
This means that as age increases, the amount of coffee purchases decreases
