Running the Analysis

To begin the analysis, from the menus choose:

Analyze > Compare Means > Independent-Samples T Test...

Figure 1. Independent-Samples T Test dialog box
Independent-Samples T Test dialog box for specifying test and grouping variables
  1. Select $ spent during promotional period as the test variable.
  2. Select Type of mail insert received as the grouping variable.
  3. Click Define Groups.
    Figure 2. Define Groups dialog box
    Define Groups dialog box with specific values defined for Group 1 and Group 2
  4. Type 0 as the Group 1 value and 1 as the Group 2 value.
  5. Click Continue.
  6. Click OK in the Independent-Samples T Test dialog box.

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