Lec 14 Q3 Flashcards

1
Q

what is the definition of audit sampling

A

application of audit procedure to less than 100% of the items within an account balance population

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2
Q

what is the purpose of sampling

A

to evaluate characteristics of the sample and project it onto the population

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3
Q

N, E and T are aspects of audit procedure - what are they are what do they stand for

A

nature - the techniques used
extent - the amount of tests done
timing - point in audit in which the procedures are to be performed

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4
Q

for internal controls doe you sample from accounts or classes of trans

A

classes of transactions

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5
Q

is sampling for IC really sampling?

A

not really because you take 2-3 I/C procedure and do a walkthrough

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6
Q

what is attribute sampling

A

looking at the documents of physical units such as sales documents

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6
Q

what sort of sampling is the effectiveness of control procedures based on

A

attribute sampling

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6
Q

when you sample for substantive testing, do you sample class or accounts

A

accounts, more specifically A or L

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6
Q

what is sampling risk

A

the risk that a conclusion drawn from sample is different from the actual characteristics of the sample

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6
Q

what types of sampling does a balance/substantive audit use

A

variable sampling and attribute sampling of monetary units

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7
Q

assuming all else if fine, what might cause sample risk

A

sample that is chosen is wrong

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8
Q

can sample risk ever be 0

A

no, it can never be 0 unless the entire population is is tested

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9
Q

what are the two types of audit sampling

A

statistical and non-statistical

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10
Q

what is statistical sampling

A

the use of probability to select and evaluate the results of a sample

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11
Q

what are two features of statistical sampling

A
  • risks can be quantified through a formula
  • they are more expensive to and require use of CATs
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12
Q

what is non-statistical sampling

A

sampling based on professional judgement

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13
Q

can sr be evaluated in non-stat

A

no, there is no formula to evaluate samp risk in non-stat

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14
Q

when should you use non-statistical sample

A

when you have good professional judgement and knowledge of the industry and business

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15
Q

which is cheaper, stat or non-stat

A

non-stat thus it is used to balance the cost between the two sampling methods

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16
Q

can both stat and non-stat be used for evidence and cas?

A

yes, both can provide sufficient appropriate evidence and both are allowed by cas, individually or in combination

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17
Q

when should you use non-statistical

A
  • 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
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18
Q

what are the three non-statistical sampling methods

A

haphazard method, block/cluster sampling, significant transactions sampling

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19
Q

what is the haphazard method of non-s sampling and give an example

A

items selected manually to draw a representative sample.
e.g. pick documents randomly from a box

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20
Q

what i/c objective does this haphazard method test

A

objective of validity

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21
Q

what is the block/cluster method and give an example

A

select consecutive sequences of transactions by time, location, #
in the A/R cycle when you trace to ensure you do not miss anything

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22
Q

what i/c objective does block method test

A

completeness

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23
Q

what is significant transaction sampling

A

select items only above or specifically below a materiality limit

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24
Q

can result from significant transactions be be projected

A

no, they cannot be projected because since the sample is only a particular transaction(s) thus it is not representative

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25
Q

do both stat and non-stat require prof judgement

A

yes

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26
Q

when is professional judgement required in stat sampling

A
  • tolerable deviation rate
  • confidence level
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27
Q

what professional judgement is requited in non-stat sampling

A

professional judgement to draw conclusions about the population

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28
Q

what is representative sampling and what is an example

A

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

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29
Q

does each unit have a chance of selection in representative sampling

A

yes, each unit has equal chances of selection

30
Q

what are 2 methods to obtain a representative sample

A
  • unrestricted random selection
  • systematic random - meaning first was chose randomly, but the rest were chose by procedure; relies on some sort of ordering - most likely for block sampling
31
Q

what is a sampling unit composed of

A

test of controls and details

32
Q

what does test of controls involve

A

looking at physical units, invoices, shipping documents, POs

33
Q

what does test of details involve

A

you are looking at the balances - dollar amount

34
Q

what are the 7 steps to assessing control risk

A
  • specifying audit objectives
  • define deviation conditions
  • define population
  • determine sample size
  • select the sample
  • perform control test procedures
  • evaluate the evidence
35
Q

what are the first 3 steps in the CR assessment related to and what do they ensure

A

they are related to problem recognition
ensuring that controls work, people are compliant to controls and if I/C objectives are being met

36
Q

describe the first step of CR assessment - specifying audit objectives

A
  • identify and test only key controls
  • identify whether control objectives related to I/C objectives of validity, completeness, proper period, authorization, accuracy and classification are met
37
Q

describe the second step of CR assessment - define deviation conditions

A

define the departures from I/C procedures
this must be done prior to testing so it is known to auditors before they encounter it

38
Q

what presence are we looking for in defining deviations Incontrol test and give an example

A

we are looking for the presence of an absence of I/C.
e.g. knowing that deviation is a credit manager not initialing on credit sale approvals, thus looking for this

39
Q

describe the third step of CR assessment - define population

A

says that conclusions can only be projected onto the sample the population comes from. this is important for validity and completeness

40
Q

describe the fourth step of CR assessment - determine sample size

A

consider that
- the higher the sample, the lower the sample risk
- tolerable deviation rate
- expected population deviation rate
- population size (very slight relation to sample size)

41
Q

describe the fifth step of CR assessment - select sample

A

should be selected from the population that the conclusion will apply to

42
Q

describe the sixth step of CR assessment - perform process

A

tests are performed with more than one test being performed on one sample - this is favorable because sampling is costly

43
Q

describe the seventh step of CR assessment - evaluate evidence

A

determine risk of assessing CR as too low or too high and compare TDR to EPDR and SDR

44
Q

what are the risks of assessing CR as too low

A

if you class it as too low, DR will be high and thus underestimated CR and overestimated the allowable DR. this means that not enough work is done. effectiveness suffers

45
Q

what are the risks of assessing CR as too high

A

if you class it as too high, DR will be low and thus overestimating CR and underestimated the allowable DR. this means that too much work is done. efficiency suffers

46
Q

is sdr calculated and is tdr expected to be perfect

A

yes, sdr is calculated and tdr is not expected to be perfect

47
Q

what is tdr

A

tolerable deviation rate
this is the error rate that you accept and still consider the control as functioning
determined through professional judgement prior to testing

48
Q

what is sdr

A

sample deviation rate
this is the actual rate of error in the sample
determined through testing

49
Q

what is EPDR

A

expected population deviation rate
rate expected prior to performing tests
this is determined through professional judgement from prior years and change in I/C

50
Q

what should be done if epdr is greater than tdr

A

testing of controls should not be done since rate is higher than tolerable - resume with pure substantive

51
Q

what should be done is epdr is less than tdr

A

test controls and get sdr

52
Q

what does it means it sdr is greater than tdr

A

controls are not working thus must do pure substantive

53
Q

what is an alternative path if sdr is greater than tdr but your are confident that is not true

A

obtain a bigger sample. this decision can come from your professional judgement

54
Q

what should be done if sdr is less than tdr

A

controls are working and a combined approach can be done

55
Q

what should be done when you discover deviations

A

follow up on the deviations by performing qualitative work and determine if the errors are
- pervasive
- misunderstanding
- deliberate
evaluate the effect on F/S and possible purpose and motives

56
Q

what is the A/R not authed example for 3 weeks example

A

discover that sales on credit have not been authed for 3 weeks
perform qualitative work and discover from HR that credit manager was on vacation
if all SDR creater than TDR are here - DISSMISS
qualitative trumps quantitative

57
Q

what is the price deviations for specific customer example

A

discover that there are price deviations
further research shows that it is only for a specific customer which means that it might be a special contract for lower price and higher volume
need to find contract

58
Q

what are the 7 steps in sampling for substantive

A
  • specify audit objective
  • define population
  • chose audit sample method
  • determine sample size
  • select sample size
  • perform substantive procedure
  • evaluate evidence
59
Q

Describe the first step in sampling for substantive procedures - specify audit objective

A

determine whether all management assertions are materially accurate
hypothesize whether BV is materially accurate

60
Q

when are assertions made

A

when numbers go from trial balance to F/S

61
Q

Describe the second step in sampling for substantive procedures - define population

A

examine individually significant items that exceed materiality
supplement significant items with representative sample from population by using stratification

62
Q

what is stratification

A

separation of the population into layers that are homogenous

63
Q

what is the main purpose of stratification

A

reduce sample size

64
Q

what can we stratify on

A

balance of the item

65
Q

on what can we make conclusions for strata samples

A

can only make conclusions on the population where the strata comes from

66
Q

how is stratification easier in terms of staffing

A

it makes it easier to assign staff as higher value items are assigned to higher experience staff and vise versa or lower value

67
Q

Describe the third step in sampling for substantive procedures - chose sampling method

A

decide whether to use statistical or judgmental sampling
for statistical use classical variable or attribute sampling

68
Q

Describe the fifth step in sampling for substantive procedures - select sample

A

can use random or non-random

69
Q

Describe the sixth step in sampling for substantive procedures - perform procedure

A

evidence gather will either back or refute management assertions

70
Q

Describe the seventh step in sampling for substantive procedures - evaluate evidence

A

where you determine identified misstatement (IM) and project it onto the population

71
Q

what is IM similar to in internal control testing

A

SDR

72
Q

when IM is projected what is it projected as

A

likely misstatement

73
Q

what is future possible misstatements (FPM)

A

misstatements that are determined through:
- professional judgement for non-sampling risk
- formula for sampling risk

74
Q

what is the equation to compare LM and FPM to performance materiality

A

LM + FPM < performance materiality, the population is accepted

75
Q

what happens if misstatements are less than performance materiality

A

it will go on the statement of unadjusted items

76
Q

what is the issue with convincing management to make an adjustment

A

there is a persuasion issue and management have to go back to the subledger and find the mistakes because LM is just a projection and they need to be convinced that they are actually there

77
Q

what will management try and argue

A

they will try to argue that the only existing misstatements are the known misstatements (IM) and there are no more