运营管理》课后习题答案.docx
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运营管理》课后习题答案.docx
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运营管理》课后习题答案
Chapter02-Competitiveness.Strategy,andProductivity
3.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
Worker
Overhead
Material
Total
MFP
Week
Output
Cost@
$12x40
Cost@1.5
Cost@$6
Cost
(2)(6)
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
3,360
5,040
2,760
11,160
2.89
4
35,400
3,840
5,760
2,880
12,480
2.84
*refertosolvedproblem#2
Multifactorproductivitydroppedsteadilyfromahighof3.03toabout
2.84.
4.
a.
Before:
805
=16cartsperworkerperhour.
After:
844
=21cartsperworkerperhour.
b.
Before:
($10x5:
=$50)+$40=$90;hence80
+$90=
:
.89carts/$1
After:
($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.
After:
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
V
Appearanee
V
V
V
Texture/consistency
V
V
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
1
48,000
64,000
32,000
2
48,000
48,000
36,000
3
30,000
36,000
24,000
4
60,000
60,000
30,000
Total
186,000
208,000
122,000
Na
186,000
150,000
Nb
208,000
150,000
Nc
122,000
150,000
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
3.
7
4
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
A
3
6
B,G
G
6
一
一
II
D
7
7
B,E
B
2
5
C
C
4
1
一
III
E
4
10
H
H
9
1
一
IV
I
5
9
一
b.Firstrule:
Largestpositionalweight.
AssemblyLineBalancingTable(CT=14)
I
F
5
9
A,D,G
D
7
2
一
II
G
6
8
A,E
A
3
5
B,E
B
2
3
一
III
C
4
10
E
E
4
6
一
IV
H
9
5
I
I
5
一
Totaltime
4.
a.l.
CTxno.ofstations
2.MinimumCt=1.3minutes
Task
Followingtasks
a
4
b
3
c
3
d2
g1
h0
WorkStation
Eligible
Assign
TimeRemaining
IdleTime
I
a
A
1.1
b,c,e,
(tie)
B
0.7
C
0.4
E
0.3
0.3
II
d
D
0.0
0.0
III
f,g
F
0.5
G
0.2
0.2
IV
h
H
0.1
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
1
5
4
3
8
7
6
2
Chapter06-WorkDesignandMeasurement
3.
Element
PR
OT
NT
AFob
ST
1
.90
.46
.414
1.15
.476
2
.85
1.505
1.280
1.15
1.472
3
1.10
.83
.913
1.15
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