15. (7 points): George Grebe has worked for Dr. Dove for several years. George demonstrates a loyalty that is rare among employees. He hasn't taken a vacation in the last three years. office is to handle patient billings. He takes cash from patients for their co-payments at the cashier window as patis leave. Although he is supposed to issue them a cash receipt, at times it is so hectic that George doesnt to He assures patients that he will see to it that they receive the proper credit, and Dr. Dove has received no comp George then prepares an invoice to send to the patient's insurance company. To save money on uesiddress. One of George's primary duties at the medical Dove doesn't use pre-printed in At the end of his shift, George opens the rm voices but rather the computer prints Dr. Dove's medical license number and mailing address. ail, lists the checks received, prepares the deposit slip and takes the checks to vening, When patient traffic is slow in the office George offers to help the AR clerk post the payments to the patients' accounts receivable. The clerk is always happy to receive his help, because George is a very conscientious worker. the bank as he leaves work for thee Evaluate Dr. Dove's internal controls over billing and patient receipts, specifically-how could the Preventive and Detective controls be improved