To add or remove a chi-square, column proportions or column means test for the table, display the Preferences tab, and then click Modify above the list of statistical tests. The Modify Table Statistics Text dialog opens, in which you can add and remove tests from your table: see Modify Table Statistics Test dialog.

For information on adding a paired preference test, see Adding a paired preference test

You can select the significance level that you require for the column proportions and column means tests. The options are 1%, 5%, and 10%.

If you want to perform the column proportions or column means test at two levels of significance, select the second significance level. The options are 5% and 10%. Note that the value you select must be greater than that of the first significance level.

By default, tests on rows or columns where the base is above the minimum base but below 100 are carried out. * (asterisk) next to the result indicates that the base size is small. You can enter a new value for the small base if required.

By default, tests are not carried out on rows or columns where the base is below 30. ** (two asterisks) in the cell to indicate this. You can enter a new value for the minimum base if required.

Select this check box if you want to use the effective base rather than the simple weighted base in statistical tests on weighted tables. This option has no effect on statistical tests run on unweighted tables. This option is selected by default. See Weighted data for more information.

The following commands are available in the menu at the top of the Preferences tab:

Copies all of the settings on the Preferences tab to the UNICOM Intelligence Reporter - Survey Tabulation clipboard. This means that you can copy the settings to another table.

Overwrites all of the options on the Preferences tab with the contents of the UNICOM Intelligence Reporter - Survey Tabulation clipboard.

Select this option if you want to define these preferences for several tables. Any new tables that you create will automatically have the same types of cell content and all of the other options defined on the Preferences tab for this table.

Select this option if you want to define these preferences to all of your existing tables.