《运营管理》课后习题标准答案Word下载.docx

《运营管理》课后习题标准答案Word下载.docx

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Cost

（2）+（6）

$12x40

1

30,000

2,880

4,320

2,700

9,900

3.03

2

33,600

3,360

5,040

2,820

11,220

2.99

3

32,200

2,760

11,160

2.89

4

35,400

3,840

5,760

12,480

2.84

*refertosolvedproblem#2

Multifactorproductivitydroppedsteadilyfromahighof3.03toabout2.84.

4.a.Before:

8055=16cartsperworkerperhour.

After:

84-4=21cartsperworkerperhour.

b.Before:

（$10x5=$50）+$40=$90;

hence80$90=.89carts/$1.

（$10x4=$40）+$50=$90;

hence84$90=.93carts/$1.

c.Laborproductivityincreasedby31.25%（（21-16）/16）.

Multifactorproductivityincreasedby4.5%（（.93-.89）/.89）.

*MachineProductivity

Before:

80+40=2carts/$1.

84+50=1.68carts/$1.

Productivityincreasedby-16%（（1.68-2）/2）

Chapter03-ProductandServiceDesign

6.StepsforMakingCashWithdrawalfromanATM

1.InsertCard:

MagneticStripShouldbeFacingDown

2.WatchScreenforInstructions

3.SelectTransactionOptions:

1）Deposit

2）Withdrawal

3）Transfer

4）Other

4.EnterInformation:

1）PINNumber

8.

Solutions_Problems_OM_11e_Stevenson

2）SelectaTransactionandAccount

3）EnterAmountofTransaction

5.Deposit/Withdrawal:

1）Deposit—placeinanenvelope（whichyou'

llfindnearorintheATM）andinsertitintothedepositslot

2）Withdrawal—lifttheaWithdrawalDoor,“beingcarefultoremoveallcash

6.Removecardandreceipt（whichservesasthetransactionrecord）

TechnicalRequirementsCustomerRequirements

Ingredients

Handling

Preparation

Taste

V

Appearance

Texture/consistency

Chapter04-StrategicCapacityPlanningforProductsandServices

2.

l”..Actualoutput“c,

Efficiency80%

Effectivecapacity

Actualoutput=.8（Effectivecapacity）Effectivecapacity=.5（Designcapacity）Actualoutput=（.5）（.8）（Effectivecapacity）Actualoutput=（.4）（Designcapacity）Actualoutput=8jobsUtilization=.4

ActualoutputUtilization;

-

Designcapacity

10.a.Given:

10hrs.or600min.ofoperatingtimeperday.

250daysx600min.=150,000min.peryearoperatingtime.

Totalprocessingtimebymachine

Product

A

B

C

48,000

64,000

32,000

36,000

24,000

60,000

186,000

208,000

122,000

Youwouldhavetobuytwo

"

C"

machineat$80,000.

Amachinesatatotalcostof$80,000,ortwo

B"

machinesatatotalcostof$60,000,orone

b.Totalcostforeachtypeofmachine:

A

（2）:

186,000min+60=3,100hrs.x$10=$31,000+$80,000=$111,000

B

（2）:

208,000-：

-60=3,466.67hrs.x$11=$38,133+$60,000=$98,133

C

（1）:

122,000-：

-60=2,033.33hrs.x$12=$24,400+$80,000=$104,400

Buy2Bs—thesehavethelowesttotalcost.

Chapter05-ProcessSelectionandFacilityLayout

Desiredoutput=4

Operatingtime=56minutes

八.Operatingtime56minutesperhour

CT=-==14minutesperunit

Desiredoutput4unitsperhour

Task

#ofFollowingtasks

PositionalWeight

23

20

18

D

25

E

F

29

G

24

H

14

I

5

a.Firstrule:

mostfollowers.Secondrule:

largestpositionalweight.

AssemblyLineBalancingTabl0T=14）

WorkStation

TaskTime

TimeRemaining

FeasibletasksRemaining

9

A,D,G

6

B,G

一

II

7

B,E

III

10

IV

b.Firstrule:

Largestpositionalweight.

AssemblyLineBalancingTable（CT=14）

8

A,E

B,E

Totaltime45ono_0/

c.Efficiency==—=80.36%

CTxno.ofstations56

4.

2.MinimumCt=1.3minutes

TaskFollowingtasks

a

b

c

d

e

f

g

h

Eligible

Assign

IdleTime1

1.1

b,c,e,（tie）

0.7

0.4

0.3

0.0

f,g

0.5

0.2

0.1

0.6

…x（idletime）.6

Idlepercent=--——--=----=11.54percent

NxCT4（1.3）

4.Output=OT=420min./day=323.1（roundsto323）copiers/day

CT1.3min./cycle

Totaltime4.6

b.1.Totaltime=4.6,CT==——=2.3minutes

N2

2.Assigna,b,c,d,andetostation1:

2.3minutes[noidletime]

Assignf,g,andhtostation2:

2.3minutes

OT420

3.Output=—==182.6copiers/day

CT2.3

420min./day

4.6min./cycle

62

Solutions_Problems_OM_11e_Ste