运营管理》课后习题答案Word下载.docx

运营管理》课后习题答案Word下载.docx

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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

Multifactorproductivitydroppedsteadilyfromahighof3.03toabout

2.84.

4.

a.

Before:

805

=16cartsperworkerperhour.

After:

844

=21cartsperworkerperhour.

b.

（$10x5:

=$50）+$40=$90;

hence80

+$90=

:

.89carts/$1

（$10x4=

$40）+$50=$90;

hence84

.93carts/$1

c.

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

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

*MachineProductivity

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

2）SelectaTransactionandAccount

3）EnterAmountofTransaction

5.Deposit/Withdrawal:

1）Deposit——placeinanenvelope（whichyou'

llfindnearorintheATM）andinsertitintothedepositslot

2）Withdrawal—liftthe“WithdrawalDoor,”beingcarefultoremoveallcash

6.Removecardandreceipt（whichservesasthetransactionrecord）

8.

Technical

Requirements

CustomerRequirements

Ingredients

Handling

Preparation

Taste

V

Appearanee

Texture/consistency

Chapter04-StrategicCapacityPlanningforProductsandServices

2.EfficiencyActualoutput8Q%Effectivecapacity

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

Utilization=.4

Utilization

Actualoutput

Designcapacity

DesignCapacity

Actualoutput8Effectivecapacity.4

20jobs

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

Na

150,000

Nb

Nc

1.242machine

1.382machine

.811machine

Youwouldhavetobuytwo“Amachinesatatotalcostof$80,000,ortwo“B'

machinesatatotalcostof$60,000,orone“C"

machineat$80,000.

b.Totalcostforeachtypeofmachine:

A

（2）:

186,000min60=3,100hrs.x$10=$31,000+$80,000=$111,000

B⑵:

208,00060=3,466.67hrs.x$11=$38,133+$60,000=$98,133

C

（1）:

122,00060=2,033.33hrs.x$12=$24,400+$80,000=$104,400

Buy2Bs—thesehavethelowesttotalcost.

Chapter05-ProcessSelectionandFacilityLayout

7

Desiredoutput=4

Operatingtime=56minutes

小十Operatingtime56minutesperhour

CT14minutesperunit

Desiredoutput4unitsperhour

Task#ofFollowingPositional

tasks

Weight

A423

B320

C218

D325

E218

F429

G324

H114

I05

a.Firstrule:

mostfollowers.Secondrule:

largestpositionalweight.

AssemblyLineBalancingTable（CT=14）

WorkStation

Task

TaskTime

TimeRemaining

Feasibletasks

Remaining

I

F

5

9

A,D,G

6

B,G

G

一

II

D

B,E

III

E

10

H

IV

b.Firstrule:

Largestpositionalweight.

8

A,E

B,E

Totaltime

a.l.

CTxno.ofstations

2.MinimumCt=1.3minutes

Followingtasks

a

b

c

d2

g1

h0

WorkStation

Eligible

Assign

IdleTime

1.1

b,c,e,

（tie）

0.7

0.4

0.3

d

0.0

f,g

0.5

0.2

h

0.1

0.6

3.Idlepercent

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

2.3minutes[noidletime]

Assignf,g,andhtostation2:

2.3minutes

7.

3.0UtPUtCT

OT420

182.6copiers/day

2.3

4.MaximumCtis4.6.Output

420min./day

4.6min./cycle

91.30copiers/day

Chapter06-WorkDesignandMeasurement

Element

PR

OT

NT

AFob

ST

.90

.46

.414

1.15

.476

.85

1.505

1.280

1.472

1.10

.83

.913