A staff auditor was listening to a conversation between two senior auditors regarding the audit risk model. The following are some statements made in that conversation regarding the audit risk model. State whether you agree or disagree with each of the statements, and explain why. a. Setting audit risk at 5% is valid for controlling audit risk at a low level only if the auditor assumes that inherent risk is 100%, or significantly greater than the real level of inherent risk. b. Inherent risk may be very small for some accounts (such as the recording of payroll transactions at Wal-Mart). In fact, some inherent risks may be close to 0.01%. In such cases, the auditor does not need to perform direct tests of account balances if he or she can be assured that inherent risk is indeed that low and that internal controls, as designed, are working appropriately. c. Control risk refers to both (a) the design of controls and (b) the operation of controls. To assess control risk as low, the auditor must gather evidence on both the design and operation of controls. d. Detection risk at 50%implies that the substantive tests of the account balance has a 50% chance of not detecting a material misstatement and that the auditor is relying on the client actions (assessment of inherent and control risk) to address the additional uncertainty regarding the possibility of a material misstatement. e. Audit risk should vary inversely with both inherent risk and control risk; the higher the risk of material misstatement, the lower should be the audit risk taken. f. In analyzing the audit risk model, it is important to understand that much of it is judgmental. For example, setting audit risk is judgmental, assessing inherent and control risk is judgmental, and setting detection risk is simply a matter of the individual risk preferences of the auditor.