The audit program for the revenue account for a client has been drafted. The following item appears:

1 completeness

Select a sample of sales from the sales journal and ensure each sales invoice is supported by an authorized delivery slip and approved customer order

1- Does the procedure address the stated assertion? Explain.

2- If your answer to part (a) is no, provide the correct assertion or explain what work would be required to address the assertion.

3- Explain what type of evidence is obtained by performing the stated procedure. How persuasive is it?