Reference no: EM132932015

Porter Gale Corporation is a publicly traded company. You are completing an audit at their headquarters and will conduct a test of controls over revenue recognition using attributes sampling. You will use the results as part of the evidence on which to base your opinion on internal controls and to determine what substantive auditing procedures you should perform on revenue and accounts receivable.

Your test of controls involves the following:

Set the risk of overreliance at 5%
Tolerable deviation rate at 5%
Expected deviation rate at 1%

You plan to use a sample size of 100. (Note that this sample size is just rounded up from the sample size of 93 that would have been obtained from the appropriate table). The results of your testing are as shown:

ControlResults1. All sales over $10,000 must be approved by the sales manager by initialing the customer's order.

1. There were only twenty-five sales over $10,000 in the sample. So, the auditor randomly collects an additional seventy-five sales transactions that were over $10,000. All were approved by the sales manager.
2. Credit must be approved by the credit department prior to shipment and noted on the customer's order.
2. Three sales were recorded without evidence of credit approval. The sales manager said she had approved the sales. No customer order could be found for three of the other sampled items.
3. Sales are recorded only when a shipping document is forwarded to the billing department.
3. No shipping document could be found for four of the sampled items.
4. The date of recording the sale must correspond to the date on the shipping document.
4. Five sales were recorded prior to the date of shipment. Your follow-up indicates that a temporary employee worked for the last two months of the fiscal year and was unaware of this requirement.
5. All prices are obtained from the current price list that is periodically updated by the sales manager.
5. All prices agreed with the appropriate price list.
6. The shipping department is not to ship products without first receiving an approved customer's order.
6. No customer orders could be found for two sample items as indicated in Step 2
7. The billing department compares the quantity billed with the customer's order.
7. Five billed quantities were for more than the customer order. Four of these took place near year-end. In addition, there was no customer order for the three items indicated in Step 2.

Required: Provide a written analysis of your audit and include a response to the question below:

Question 1: Determine the upper limit of deviation for each of the controls.