(solution) Hello I have a question about a previous question you answered:

(solution) Hello I have a question about a previous question you answered:

Hello I have a question about a previous question you answered:

Use a time series of data of at least 10 years. You can search for this data using the Internet.

  • Before running the regression analysis , predict what sign each variable will be and explain why you made that prediction.
  • Run three simple linear regressions by considering one independent variable at a time
  • After running each of the three linear regressions, interpret the regression.
  • Does the regression fit the data well?
  • Run a multiple regression using all three independent variables. 
  • Interpret the multiple regression.  Does the regression fit the data well? 
  • Does each predictor play a significant role in explaining the significance of the regression?
  • Are some predictors not useful?
  • If so, did you consider removing those and rerunning the regression?
  • Are the predictors related too significantly to one another? What is the coefficient of correlation ?r?? Do you think this ?r? value suggests a strong correlation among the predictors ( the independent variables?