answer set new 5

7/22/2019 Answer Set New 5

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Operations and Production Management MGMT 405 Answer set 5

MGMT 405 Operations and Production ManagementAnswer set 5

(Reference chapters 17 !i""iam #$ %te&enson'007) ninth edition*

+iscussion ,uestions

1$ Give some examples of ethical issues that may arise on proects! "hat

can a proect manager do to minimi#e such issues$

Ans%

$ "hat are the &ey advantages of using proect management software$

Ans%

-$ 'ist the main advantages of P()T! 'ist the main limitation!

Ans%

4$ "hy might a person wish to *e involved with a critical path activity$

"hat are some of the reasons one might have for not wanting this

association$

Ans%

5$ +s the concept of variance of critical path misleading in estimating a

proect,s completion time$

Ans%

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.$ (xplain the concept of%

9a: (xpected activity time

9*: ;ariance of activity time

9c: 2tandard deviation of a path,s time

Ans%

7$ "hat are some of the potential *enefits of wor&ing on a special

proect in one,s firm$ "hat are some of ris&s$

Ans%


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Pro/"ems

1$ A student recei&ed new word processing software for the students /irthda$ The

student a"so recei&ed a chec2 with which she intends to purchase a new computer$

The students co""ege instractor assigned a paper due ne3t wee2$ The student

decided that shehe wi"" prepare the paper on the new computer$ %hehe made a "ist

of the acti&ities that she he wi"" need to do and their estimated times$

stimated time (hrs$* Acti&it

0$6 nsta"" software

0$4 Out"ine the paper

0$ su/mit paper

0$. choose a topic

0$5 8se grammar chec2

-$0 write the paper using software

$0 shop for a new computer

1$0 se"ect and purchase computer

$0 9i/rar research

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A:%;

(a* Arrange the acti&ities into "ogica" sehoose topic shop

9i/rar research se"ect

Out"ine nsta""

!rite paper

Grammar chec2

%u/mit paper

(/* >onstruct an AOA networ2 diagram=

(c*

+etermine

the

critica" Path and and the e3pected

duration time

%hop'%e"ect'nsta""' !rite'Grammar'%u/mit

?1?0$6?-?0$5?0$@7$5

9d: "hat are some possi*le reasons for proect to ta&e longer than the expected duration$

+t may *e parellel Path

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Choose

Start

Shop

Library

2

0.6

2

Select

1

3

0.4

Install

outline Write Grammar Submit End

0.

0.! 0.2


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$ The fo""owing ta/"e contains information re"ated to the maor acti&ities of a

research proect$ 8se the information to do the fo""owing; each case ma re


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(/* Bind the critica" path /ased AOA$

a'd'2'5'7'@14

/'e'2'6'-'@1-

/'f'h'6'.'6@

C/'f'dumm'i'6'.'0'15@D

c'g'i''10'15

(c* +etermine the e3pected "ength of the proect$

a'd'2'5'7'@14

/'e'2'6'-'@1-

/'f'h'6'.'6@

/'f'dumm'i'6'.'0'15@D C

c'g'i''10'15

-$ 8sing the information on the fo""owing diagram and ca"cu"ate the amount of

s"ac2 time for each path as we"" as %) B) 9% and 9B

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A:%;

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&

4

10

6h

!

1

2

36

&

11

12

10

4"

!

2

3

"

2

6

4

!

7


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4$ Gi&en the fo""owing diagram;

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>ompute (a* the e3pected time (/* the e3pected duration (c* dentif the critica"

(d* path The &ariance (e*The std$ de&iation (f*the pro/a/i"it that the proectcan /e comp"eted within . wee2s of its start (proect manager recei&es a /onus

of E 1000* (g* the pro/a/i"it that the proect can /e comp"eted within 7 wee2s

of its start (proect manager recei&es a /onus of E 500*$ Before complete the

sections, do not forget to draw its AOA diagram.

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Activity Predecessor Time(weeks)

A - 2-4-6D A 6-8-10

E D 7-9-12

H E 2--!

" A -4-8

# " !-7-9

$ - 2-2-

% $ 2--6

& % -4-!

' & 4-!-8

- !-8-12

1-1-1

* 6-7-11

0 * 8-9-1

E+d H, #, ', 0


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A?2% Answers for all sections as follows%

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5$ Indirect costs $or a pro(ect are )12*000 per +ee# $or as lon% as the

pro(ect lasts. ,he pro(ect mana%er has supplied the cost and time

in$ormation sho+n. -se the in$ormation to

a. etermine an optimum crashin% plan.

b. Graph the total costs $or the plan.

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ANSWRES AS FOLLOWS:

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