multiple regression equation

Question # 00260439 Posted By: rpare Updated on: 04/23/2016 11:59 AM Due on: 04/29/2016
Subject Business Topic General Business Tutorials:
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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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Tutorials for this Question
  1. Tutorial # 00255691 Posted By: neil2103 Posted on: 04/23/2016 12:23 PM
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    The solution of multiple regression equation...
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