Final answer:
Option 2, 'data shown on source documents are key entered or scanned,' is not part of the computer agreement of batch totals process; this step pertains to data input. The other options describe steps that involve establishing, generating, or reconciling batch totals for accuracy.
Step-by-step explanation:
The question relates to the process of agreement of batch totals in a computer system. The activity which is not part of the computer agreement of batch totals is option 2: 'data shown on source documents are key entered or scanned.' This step is related to data input or capture, which occurs before any batch total is calculated or compared. The steps that are part of the agreement process involve establishing a manual batch total (1), generating a batch total through the computer following data entry (3), and the reconciliation process between manual and computer batch totals (4). These three steps ensure the accuracy of the batch processing by verifying that totals match as expected.