For each scenario identify the control and the assertion

1) Sales invoices are independently verified for correctness

2) A paymaster who has no other payroll responsibility distributes the payroll checks

3) All weekly time records of employees must be approved by a supervisor on the production floor

4) Every sales invoice gets matched with a shipping document

5) Before any credit sale is processed, it must be approved by an officer in the credit department

6) Input into the system of price and quantity on a sale is checked by a second person