A8 Sampling Risk II Flashcards
Variable Sampling
AKA substantive test sampling that’s used for sampling estimations. Highlights Tolerable misstatements = Dollar Errors
Tolerable Misstatement
The maximum monetary misstatement in the related account balance or class of transactions the auditor is willing to accept.
Attribute Sampling
Highlights Tolerable deviations = Internal Control Errors
Stratification
Involves separating items into relatively homogenous groups and treating each group as a separate population. Used when the population has highly variable amounts and results in a reduced sample size.
Classical Variables Sampling
Samples that measures sampling risk by using variation of the underlying characteristics of interest. 3 ways to achieve this is through Mean Per Unit estimation, Ratio Estimation, & difference estimation.
Mean Per Unit Estimation (MPU)
Uses the average Value of the items in the sample to estimate the true population value.
Ratio Estimation
Uses the ratio of the audited values of items to book their book values to project the true population value. Only effective when the auditor expects large numbers of overstatements & understatements.
Difference Estimation
Uses the average difference between the audited values of items & their book values to project the actual population value. Only effective when the auditor expects large numbers of overstatements & understatements.
Probability Proportional to Size (PPS)
AKA dollar unit sampling or PPS is a technique where the sampling unit is defined as an individual dollar in a population. Once a dollar is selected the entire account containing that dollar is audited.
Advantage & Disadvantage of PPS
Automatically emphasizes larger items and if no errors are expected it generally requires a smaller sample size.
Disadvantage is that zero, negative, & understated balances require special design considerations.
Dual Purpose Samples
Considered when the auditor may use the same sample to perform both tests of controls & test of details. The sample size should be the larger of samples.
Acceptable Detection Risk
As acceptable level of detection risk decreases, an auditor may postpone the planned timing of substantive tests should increase which also causes the auditor to change the nature of substantive tests from less effective to more effective procedures.
Risk Of Material Misstatement
RMM exist when there’s reasonable possibility of a misstatement occurring & if it does happen, there’s reasonable possibility of it being material.
RMM = IR x CR (these are assessed to identify where MM can occur)
Movements in Detection Risk
Inversely related to the risk of material misstatement.
Increase in RMM = Decrease in Allowable risk
Increase in DR = Decrease in SAP
Decrease in DR = Increase in SAP
Inherent Risk
The susceptibility that an error or omission will occur in a financial statement due to a factor other than a failure control. Basically its the likelihood of the numbers are wrong/disclosures are incorrect.
Exist independently of the audit which means it cannot be controlled or changed by the auditor.