arens_chapter15

8/9/2019 Arens_Chapter15

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2010 Prentice Hall Business Publishing,2010 Prentice Hall Business Publishing, Auditing 13/e,Auditing 13/e,Arens//Elder/BeasleyArens//Elder/Beasley 15 - 1

Audit Samling !"r #ests "!Audit Samling !"r #ests "!

$"ntr"ls and Substanti%e #ests "!$"ntr"ls and Substanti%e #ests "!

#ransacti"ns#ransacti"ns

$hater 15$hater 15


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2010 Prentice Hall Business Publishing,2010 Prentice Hall Business Publishing, Auditing 13/e,Auditing 13/e,Arens//Elder/BeasleyArens//Elder/Beasley 15 -15 - 22

&earning 'b(ecti%e 1&earning 'b(ecti%e 1

E)lain the c"ncet "!E)lain the c"ncet "!

reresentati%e samling*reresentati%e samling*


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2010 Prentice Hall Business Publishing,2010 Prentice Hall Business Publishing, Auditing 13/e,Auditing 13/e,Arens//Elder/BeasleyArens//Elder/Beasley 15 -15 - ++

eresentati%e Samleseresentati%e Samles

A representative sampleis "ne in hich

the characteristics in the samle "! audit

interest are ar")imately the same asth"se "! the "ulati"n*

Nonsampling riskis the ris. that audit

tests d" n"t unc"%er e)isting e)ceti"nsin the samle*


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2010 Prentice Hall Business Publishing,2010 Prentice Hall Business Publishing, Auditing 13/e,Auditing 13/e,Arens//Elder/BeasleyArens//Elder/Beasley 15 -15 -

eresentati%e Samleseresentati%e Samles

Sampling riskis the ris. that an audit"r

reaches an inc"rrect c"nclusi"n

because the samle is n"treresentati%e "! the "ulati"n*

Samling ris. is an inherent art "!

samling that results !r"m testingless than the entire "ulati"n*


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inimiing Samling is.inimiing Samling is.

1* Ad(ust samle sie

2* se an ar"riate meth"d "! selectingsamle items !r"m the "ulati"n


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4istinguish beteen statistical4istinguish beteen statistical

and n"nstatistical samling andand n"nstatistical samling and

beteen r"babilistic and n"n-beteen r"babilistic and n"n-r"babilistic samle selecti"n*r"babilistic samle selecti"n*


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2010 Prentice Hall Business Publishing,2010 Prentice Hall Business Publishing, Auditing 13/e,Auditing 13/e,Arens//Elder/BeasleyArens//Elder/Beasley 15 -15 -

Statistical 6ersus 7"nstatisticalStatistical 6ersus 7"nstatistical

SamlingSamling

Ste 18 Plan the samle

Ste 28 Select the samle and er!"rm the tests

Ste +8 E%aluate the results

Similarities8


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Statistical 6ersus 7"nstatisticalStatistical 6ersus 7"nstatistical

SamlingSamling

Statistical samplingall"s the :uanti!icati"n

"! samling ris. in lanning the samle ;Ste 1>

Pr"babilistic 6ersus 7"nr"babilisticPr"babilistic 6ersus 7"nr"babilistic

Samle Selecti"nSamle Selecti"n

Probabilistic sampleselectionis a meth"d

"! selecting a samle such that each

"ulati"n item has a .n"n r"bability"! being included in the samle*

Nonprobabilistic sample selectionis a

meth"d in hich the audit"r uses r"!essi"nal(udgment rather than r"babilistic meth"ds*


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1* 4irected samle selecti"n

2* Bl"c. samle selecti"n

+* Hahaard samle selecti"n

7"nr"babilistic8


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1* Simle rand"m samle selecti"n

2* Systematic samle selecti"n

+* Pr"bability r""rti"nal t" sie samle selecti"n

* Strati!ied samle selecti"n

Pr"babilistic8


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7"nr"babilistic Samle7"nr"babilistic Samle

Selecti"n eth"dsSelecti"n eth"ds

Directed sample selectionis the selecti"n "!

each item based "n audit"r (udgmental criteria*

=tems m"st li.ely t" c"ntain misstatements

=tems c"ntaining selected "ulati"n characteristics

&arge d"llar c"%erage


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2010 Prentice Hall Business Publishing,2010 Prentice Hall Business Publishing, Auditing 13/e,Auditing 13/e,Arens//Elder/BeasleyArens//Elder/Beasley 15 -15 - 1+1+

7"nr"babilistic Samle7"nr"babilistic Samle

Selecti"n eth"dsSelecti"n eth"ds

Block sample selectionis the selecti"n

"! se%eral items in se:uence*

Haphazard sample selectionis the selecti"n

"! items ith"ut any c"nsci"us bias "n the

art "! the audit"r*


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&earning 'b(ecti%e +&earning 'b(ecti%e +

Select reresentati%e samles*Select reresentati%e samles*


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Pr"babilistic Samle Selecti"nPr"babilistic Samle Selecti"n

eth"dseth"ds

A simlerandom sampleis "ne in hich

e%ery "ssible c"mbinati"n "! elements

in the "ulati"n has an e:ual chance"! c"nstituting the samle*

$"muter generati"n "! rand"m numbers

and"m number tables


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eth"dseth"ds

Systematic samle selecti"n8

#he audit"r calculates an inter%al and

then selects the items !"r the samlebased "n the sie "! the inter%al*

#he inter%al is determined by di%idingthe "ulati"n sie by the number "!

samle items desired*


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eth"dseth"ds

Pr"bability r""rti"nal t" sie8

A samle is ta.en here the r"bability

"! selecting any indi%idual "ulati"n itemis r""rti"nal t" its rec"rded am"unt ;PPS


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eth"dseth"ds

Strati!ied samle selecti"n8

#he "ulati"n is di%ided int" sub"ulati"ns

by sie and larger samles are ta.en "! thelarger sub"ulati"ns*


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2010 Prentice Hall Business Publishing,2010 Prentice Hall Business Publishing, Auditing 13/e,Auditing 13/e,Arens//Elder/BeasleyArens//Elder/Beasley 15 -15 - 1>1>

&earning 'b(ecti%e &earning 'b(ecti%e

4e!ine and describe audit4e!ine and describe audit

samling !"r e)ceti"n rates*samling !"r e)ceti"n rates*


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Samling !"r E)ceti"n atesSamling !"r E)ceti"n ates

#he occurrence rate, "r exception rate,

is the rati" "! the items c"ntaining the

seci!ic attribute t" the t"tal number"! "ulati"n items*


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Samling !"r E)ceti"n atesSamling !"r E)ceti"n ates

?"ll"ing are tyes "! e)ceti"ns in

"ulati"ns "! acc"unting data8

1* 4e%iati"ns !r"m client@s established c"ntr"ls2* "netary misstatements in "ulati"ns

"! transacti"n data

+* "netary misstatements in "ulati"ns "!acc"unt balance details


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se n"nstatistical samling inse n"nstatistical samling in

tests "! c"ntr"ls and substanti%etests "! c"ntr"ls and substanti%e

tests "! transacti"ns*tests "! transacti"ns*


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2010 Prentice Hall Business Publishing,2010 Prentice Hall Business Publishing, Auditing 13/e,Auditing 13/e,Arens//Elder/BeasleyArens//Elder/Beasley 15 -15 - 2+2+

#erms sed in Audit Samling#erms sed in Audit Samling

$haracteristic "r attribute

Accetable ris. "! assessing c"ntr"l ris. t""l" ;AA$

arens_chapter15

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