Chapter 09 – Audit Sampling: An Application to Substantive Tests of Account Balances
22. An accounts receivable account balance is $500,000 and the auditor determines a sample
size of 30 would provide adequate assurance. The auditor plans to use a monetary-unit
sampling plan with systematic sample selection. The auditor notices that there are six customer
accounts of at least $15,000 and would like the systematic selection technique to select all items
that are at least $15,000, even if that means the sample size is slightly larger than 30. To achieve
the auditor’s objectives, the sampling interval should be
23. For monetary-unit sampling, a sampling interval of 400 means that