The principal test of detail involves sending "confirmations" or letters to customers so that they can confirm that they owe EarthWear the reported balance. All six customer accounts receivable balances exceeding $100,000 were targeted for testing. These six balances, aggregated total of $921,000, were confirmed without exceptions. The remaining accounts are of similar size and total $7,722,000 and will be tested via audit sampling. Inputs for the sample size determination were, Desired Confidence Level--95%, Tolerable Misstatement--$600,000, and Expected Misstatement--$154,440. Based on these inputs, 67 accounts receivable balances were selected for confirmation requests. The first 63 accounts receivable confirmations have already been reviewed by other staff members and no errors have been found. The remaining four confirmations require your review as they were returned with notes from customers indicating a potential misstatement. Please note that legitimate timing differences do not result in misstatements.

Statistical Evaluation of Errors using IDEA Monetary Unit Sampling*** how to calculate the answers in IDEA software