step  To run a GLM Univariate analysis, from the menus choose:

Analyze
  General Linear Model
   Univariate...

step  Click Reset to restore the default settings.

step  Select Amount spent as the dependent variable.

step  Select Who shopping for and Use coupons as the fixed factors.

step  Click Options.

step  Select Estimates of effect size.

step  Click Continue.

step  Click OK in the GLM Univariate dialog box.