Lec 14 Q3 Flashcards
what is the definition of audit sampling
application of audit procedure to less than 100% of the items within an account balance population
what is the purpose of sampling
to evaluate characteristics of the sample and project it onto the population
N, E and T are aspects of audit procedure - what are they are what do they stand for
nature - the techniques used
extent - the amount of tests done
timing - point in audit in which the procedures are to be performed
for internal controls doe you sample from accounts or classes of trans
classes of transactions
is sampling for IC really sampling?
not really because you take 2-3 I/C procedure and do a walkthrough
what is attribute sampling
looking at the documents of physical units such as sales documents
what sort of sampling is the effectiveness of control procedures based on
attribute sampling
when you sample for substantive testing, do you sample class or accounts
accounts, more specifically A or L
what is sampling risk
the risk that a conclusion drawn from sample is different from the actual characteristics of the sample
what types of sampling does a balance/substantive audit use
variable sampling and attribute sampling of monetary units
assuming all else if fine, what might cause sample risk
sample that is chosen is wrong
can sample risk ever be 0
no, it can never be 0 unless the entire population is is tested
what are the two types of audit sampling
statistical and non-statistical
what is statistical sampling
the use of probability to select and evaluate the results of a sample
what are two features of statistical sampling
- risks can be quantified through a formula
- they are more expensive to and require use of CATs
what is non-statistical sampling
sampling based on professional judgement
can sr be evaluated in non-stat
no, there is no formula to evaluate samp risk in non-stat
when should you use non-statistical sample
when you have good professional judgement and knowledge of the industry and business
which is cheaper, stat or non-stat
non-stat thus it is used to balance the cost between the two sampling methods
can both stat and non-stat be used for evidence and cas?
yes, both can provide sufficient appropriate evidence and both are allowed by cas, individually or in combination
when should you use non-statistical
- when there is a small population (costly and inconvenient to do statistical)
- high percentage of the population are individual accounts with high value and risk items
- accounts’ records for entire population are difficult to access
- records are maintained manually
what are the three non-statistical sampling methods
haphazard method, block/cluster sampling, significant transactions sampling
what is the haphazard method of non-s sampling and give an example
items selected manually to draw a representative sample.
e.g. pick documents randomly from a box
what i/c objective does this haphazard method test
objective of validity
what is the block/cluster method and give an example
select consecutive sequences of transactions by time, location, #
in the A/R cycle when you trace to ensure you do not miss anything
what i/c objective does block method test
completeness
what is significant transaction sampling
select items only above or specifically below a materiality limit
can result from significant transactions be be projected
no, they cannot be projected because since the sample is only a particular transaction(s) thus it is not representative
do both stat and non-stat require prof judgement
yes
when is professional judgement required in stat sampling
- tolerable deviation rate
- confidence level
what professional judgement is requited in non-stat sampling
professional judgement to draw conclusions about the population
what is representative sampling and what is an example
characteristics of the sample that are reflective of the population
e.g. if the population and the sample both have a 4% rate of error, sample is representative