The following are common audit procedures for tests of sales and cash receipts:

1.Compare the quantity and description of items on dupli¬ cate sales invoices with related shipping documents.

2. Trace recorded cash receipts to the cash receipts journal and compare the customer name, date, and amount of each one.

3. Compare unit selling prices on duplicate sales invoices to the inventory master file.

4. Examine the sales journal for related-party transactions, notes receivable, and other unusual items.

5. Select a sample of customer purchase orders and trace the document to related shipping documents, vendors' invoices, and sales journal for comparison of name, date, and amount.

6. Perform a proof of cash receipts.

7. Examine a sample of remittance advices for approval of cash discounts.

Required

a. State which transaction-related audit objective each of the audit procedures fulfills.

b. For each test of control, state a dual purpose test (if pos¬ sible) that could be used to determine whether there was a monetary misstatement.