QUESTION 7 You are the senior in charge of the audit of Dean. To assist you in your audit planning, one of the audit team has provided the following description of the purchasing system. No other controls exist apart from those described. "The company has no buying department so employees place orders in their own area of responsibility. A three part order form is used: copy 1 is retained by the originator, copy is sent to the goods inward department and copy 3 is sent to the supplier." "Goods are received, but not checked, by the goods inwards clerk. Once received, the advice note and purchase order for those goods are sent to the purchase ledger clerk." "When the supplier's invoice is received the purchnse ledger clerk checks the calculations on it, initials it and staples the advice note and purchase order to it. She enters the invoice on to the purchase leder Rejured a) To identify six weaknesses and explain briefly its audit significance in terms of the types of errors that could result). (b) To describe the eliect it would have on your nomai audit procedures