Introduction to econometrics Assignment

In this assignment, I am required to choose a data set from bunch of sets given to me by the instructor. I need to choose a question to base my assumptions on and then interpret the variables using 4 functions

Log (percentages) 

Linear 

Quadratic

Dummy variables 

and then use gritl to run a regression analysis. 

for an econ pro this should be easy . Please place ur bit if u feel that u know how this assignment is done