Running the analysis

1. To run a linear regression analysis, from the menus choose:

   Analyze > Regression > Linear...

   Figure 1. Linear Regression dialog box

   
2. Select Log-transformed sales as the dependent variable.

   The distribution of Log-transformed sales is closer to normal than Sales in thousands, and the linear regression model works better with normal variables.

3. If the source variable list does not display variables in variable labels in file order, right-click anywhere in the list and select Display Variable Labels and Sort by File Order from the context menu.
4. Select Vehicle type through Fuel efficiency as independent variables.
5. Click Statistics.
   Figure 2. Statistics dialog box

   
6. Select Part and partial correlations and Collinearity diagnostics.
7. Click Continue.
8. Click OK in the Linear Regression dialog box.

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