BUS 3059 Week 4 Assignment 3, Multiple Regression Analysis

You have been assigned the task of creating a multiple regression equation of at least three variables that explains Microsoft’s annual sales.

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

• Before running the regression, predict what sign each variable will be and explain why you make that prediction.
• After running the regression, interpret the 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?