multiple regression equation
Question # 00260439
Posted By:
Updated on: 04/23/2016 11:59 AM Due on: 04/29/2016

You have been assigned the task of creating a multiple regression equation of at least three variables that explains Microsoft’s annual sales.
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?
Submit your answers in a two- to three-page Word document

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Rating:
5/
Solution: multiple regression equation