Exam 2 Flashcards
audit sampling
The application of an audit procedure to less than 100 percent of the items for the purpose of evaluating some characteristic of the balance or class.
sampling risk
The possibility that a properly drawn sample may not be representative of the underlying population. The auditor may thus form a different conclusion
procedures that use sampling
Inspection of tangible assets (e.g., inventory)- not easy to look at all inventory
Inspection of records or documents- thousands of contracts
Confirmations- have people confirm that the amount of money they owe is correct
Reperformance- auditor redoes a calculation
procedures that do not use sampling
(Easy to look at entire populations) Analytical procedures- using regression Scanning Inquiry- ask questions about everything Observation- easy to observe all people
advantages of statistical sampling
Plans an efficient sample- gives exact sample size needed
Objective way to determine whether there is enough evidence and whether it is right or wrong
Disadvantages of statistical sampling
Costly to train auditors
Requires semi-random method to draw sample
Selecting items to be tested
systematic sampling formula
in population/ # in desired sample size = sampling interval
haphazard selection
Made without any special reason for including or excluding an item.
Cannot be used in statistical sampling, because it is not based on defined probability concepts.
attribute sampling
Testing controls for effectiveness
Primarily used to assess control risk, by conducting tests of controls
attributes sampling examples
Credit only given to only to authorized customers.
Billing department verification of agreement of sales invoice prices with authorized prices.
Purchase department approval of purchase requisitions.
Variables sampling
Estimating dollar amounts or quantities—primarily to limit detection risk by conducting substantive testing
Ex. Tests of inventory quantities and amounts.
Tolerable deviation rate
The maximum rate of deviations from the control policy that an auditor could accept without altering the planned assessed level of control risk.
Tests of Controls Sampling Steps
Determine the objective Define deviation conditions Define population Specify risk of assessing control risk too low and tolerable deviation rate. Estimate population deviation rate Determine sample size Select the sample Perform the sampling plan Evaluate sample results Document sampling procedure
probability proportional to size
Population is the individual dollars of the population book value
Uses stratification- 3rd dollar- customer 2, 8th dollar- customer 3
Advantages of PPS sampling
Smaller sample sizes than classical sampling
Automatically results in a stratified sample
Sample can be designed and sample selection can begin prior to availability of entire population..
Easier to apply- everyone has a semi-random sample
Disadvantages of PPS sampling
Accounts with zero balances.
Accounts with negative balances.
Accounts are understated.
projected misstatement
The most likely amount of any misstatement in a population
Upper limit on misstatements
Calculating upper limit on misstatements
projected misstatement +
basic precision +
incremental allowance (for projected misstatements)
Calculate basic precision
Reliability Factor x Sampling Interval
Calculate incremental allowance
(Reliability factor Increment - 1) x projected misstatement
Calculate projected misstatement
((Book Value - Audited Value)/ Book value) * projected sampling interval
imprest account
balance maintained at a fixed amount; i.e. petty cash
internal control guidelines for cash
Do not permit any one employee to handle a transaction from beginning to end.
Separate cash handling from recordkeeping.
Centralize receiving of cash to the extent possible.
Record cash receipts on a timely basis.
Encourage customers to obtain cash receipts and observe cash register totals.
Deposit cash receipts daily.
Make all disbursements by check (except for petty cash items).
Have monthly bank reconciliations prepared by employees not responsible for the issuance of checks or custody of cash.
Forecast expected cash receipts and disbursements and investigate variances.
Common substantive tests for cash
Trial balance
Confirmations- paper or email sent out to financial institutions
trial balance
Obtain analysis of cash balances and reconcile to the general ledger.
Client should be checking their cash balances, tying up documents.
bank reconciliations will only record _______
differences between bank statements and financial statements
Bank statement balance 8/31-9/30 reconciliation
Balance 8/31
+Deposits
-Checks and Charges
=Balance 9/30
Bank balance 8/31- Book balance 8/31 reconciliation
Balance 8/31 \+ Deposits in transit 8/31 - Outstanding checks 8/31 \+ Bank service charge August -Interest earned August =Book balance 8/31
purpose of a bank reconciliation
Existence of cash
bank cut off statement
A bank statement for the first 7-10 business days following the end of the client’s fiscal year.
Includes cancelled checks, credit memos etc.
Tie all amounts from bank rec to cut off statements
Make sure that outstanding checks and deposits did show up