Regression analysis can be used to analyze how a change in one variable impacts the other variable,...

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Regression analysis can be used to analyze how a change in one variable impacts the other variable, such as an increase in marketing budget increasing sales. Find a unique area of your life where one variable impacts the other variable (and that are both measurable) and do a regression analysis on it. Be sure to include the coefficient of determination as well as the test of significance. Share your results and make any comments as to whether or not there is a possibility of potential problems (causation or extrapolation) with your re

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Question: 
Regression analysis can be used to analyze how a change in one variable impacts the other 
variable, such as an increase in marketing budget increasing sales. Find a unique area of your life 
where one variable impacts the other variable (and that are both measurable) and do a regression 
analysis on it.  
Be sure to include the coefficient of determination as well as the test of significance.  
Share your results and make any comments as to whether or not there is a possibility of potential 
problems (causation or extrapolation) with your results.
Solution: 
A group of 11 students was selected at random and asked for their high school GPA and their 
freshmen GPA in college the subsequent year. The results were: 
Student High School GPA Freshmen GPA 
1 2.0 1.6 
2 2.2 2.0 
3 2.6 1.8 
4 2.7 2.8 
5 2.8 2.1 
6 3.1 2.0 
7 2.9 2.6 
8 3.2 2.2 
9 3.3 2.6 
10 3.6 3.0 
We would like to know whether there is a linear relationship between the high school GPA and 
the freshmen GPA.

Regression analysis can be used to analyze how a change in one variable impacts the other variable, such as an increase in marketing budget increasing sales. Find a unique area of your life where one...

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