One of your classmates, Kristin Lea, a chemistry major, is puzzled about what an auditor does. She says to you, "My only impression about auditors comes from Bob Cratchit, Tiny Tim's father, in Charles Dickens' A Christmas Carol. It sure seems to me as though there's little science in an auditor's work!"

Required:

Explain the role of an auditor using terms that would be familiar to a chemistry major.