Module 7 Audit Sampling Flashcards
What two items make up Detection Risk?
Detection Risk is the produce of Test of Details Risk, and Analytical Procedures Risk.
What is a Dual Purpose Test?
A dual purpose test are those in which a single sample is used to test a control AND serve as a substantive test.
What kind of sampling is used in a test of controls?
Attributes Sampling
What type of sampling is used for a test of details (transactions, balances, etc)?
Variables sampling
What is stratified sampling?
The sampling of a population with two or characteristics. The percent of each characteristic over the total population is calculated and then multiplied by the total sample number to give the sample number of each characteristic.
What is systematic sampling?
Every nth item of a population is selected after a random start. (If the population is arranged randomly, systematic selection is essentially the same as random number selection.
What is Haphazard sampling?
A sample selected without any conscious bias. But is still representative of the population.
What is the least desirable method of sampling?
Block Sampling
What is block sampling?
Selecting a random block as the population Example: For a population of invoices, picks invoice numbers 1000 through 1049.
What is the Sample Size Equation, and what are its parts?
n = Sample Size
N = Population Size
SD - Esimated population standard deviation
Ur = The standard normal deviate for the acceptable risk of incorrect rejection
A = Planned allowance for sampling risk
For the Sample Size equation, what formula is used to adjust the sample size so that is can be adjusted by a finite correction factor?
And what are its parts?
n = Sample Size
N = Population Size
What is the tolerable deviation rate a fuction of?
The planned assessed level of control risk
AND
the degree of assurance desired by the sample
How is the allowance for sampling risk calculated?
Sample Deviation Rate - Upper Deviation Limit
What is a Type I Error, and how does it affect the audit?
Risk of incorrect rejection. Impacts audit efficiency
What is a Type II Error, and how does it affect the audit?
Risk of incorrect acceptance. Impacts audit effectiveness