Multiple regression

timer Asked: May 29th, 2013
account_balance_wallet $20

Question description

Multiple regression analysis is widely used in  business
research in order to forecast and predict purposes. It is also used to 
determine what independent variables have an influence on dependent
variables,  such as sales.


Sales can be attributed to quality, customer  service,
and location. In multiple regression analysis, we can determine which 
independent variable contributes the most to sales; it could be quality
or  customer service or location.


Now, consider the following scenario. 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
              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.                      


On a separate page, cite all sources using the APA guidelines.

Tutor Answer

School: University of Maryland

flag Report DMCA

Wow this is really good.... didn't expect it. Sweet!!!!

Similar Questions
Hot Questions
Related Tags

Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors