AVF COMPANY processes an average of 400 voucher payable every month. each voucher package contains a copy of the checks disbursed and supporting documents such as vendor invoices, receiving report, and purchase orders. The internal auditor plans to examine a sample of vouchers listed i the register using attribute sampling to evaluate the effectiveness of several controls. The attributes of interest includes: agreement of voucher with amounts with invoice amounts,voucher cancel after payment. help with schedule based on 2% for the first attribute and 1 percent for the second. deviation rate 7% for first and 6% for the second. risk of assessing control too low at 5%