The Precision Level interface () is used to view and update the confidence level and precision rate of each Functional System and Urban Code combination. It plays a very important role, for its data is used to calculate the number of required samples per stratum on the Adjust TOPS and Check Adequacy interfaces. The Precision Level interface can be accessed on the Sample Adequacy tab; it is the only icon under the Maintenance section.

Editing Steps

By default, the Precision Level data is copied from the previous year. To edit this data, the user can follow these steps:

1. Click into a Precision Rate or Confidence Level cell.
2. Edit the resulting textbox.
3. Click the "Save Changes" button.