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?