SNHU QSO600 MODULE 11 final exam

Final Exam
Operations Get research paper samples and course-specific study resources under   homework for you course hero writing service – Manage ment
QSO 600 Operations Get research paper samples and course-specific study resources under   homework for you course hero writing service – Manage ment

The final exam
consists of five essay and eight problem questions. Answer all the questions.

Essay Questions:
There is no set
length for answers; students may be as verbose or brief as they feel necessary
to cover the question. Use this same exam document for your answers, placing
them below each question.

Problem Questions:
Make sure to show
all your work to get full credit. The instructor needs to know the formulas and
calculations you used to get to your final answer. You can do part of the exam in Excel and
Paste your Excel work into this document.

File Convention:
File name for the
exam attachment to be
studentlastname-finalexam
(Be sure there are no spaces)
Be sure to put
your name on the exam paper.

Note: You may use the text
and any other materials. You are NOT to work with anyone else including other students
in completing the exam nor discuss it with them.

Essay Questions
1. What is operations management? Why is it important? Is a good
knowledge of operations management more important in service or manufacturing
industries? Explain your answer.

2. Discuss the use of PERT/CPM techniques for managing projects.
Write a page paper – Describe what PERT/CPM does. Discuss advantages and disadvantages of using it.
What other techniques might you choose to manage your project?

3. What are economies of scale in a manufacturing plant? Do they
continue forever? What are diseconomies of scale? How might you decide the
optimal size of a plant?

4. What, in your opinion are the 3 most important issues in supply
chain management. Discuss why you think these are the key issues.

5. Discuss why (or if) inventories are necessary. What are the benefits
of inventories? What are the disadvantages of holding inventories?

Problem
Questions
1. Thermostats are subjected to rigorous testing before they are
shipped to air conditioning technicians around the world. Results from the last
five samples are shown in the table. Draw and R Chart and an x-bar chart. Based on the charts, is the process under
control? (20 Points)

Observations

Sample

1

2

3

4

5

1

73.5

70.8

72.2

73.6

71.0

2

71.3

71.0

73.1

72.7

72.2

3

70.0

72.6

71.9

72.4

73.3

4

71.1

70.6

70.3

74.2

73.6

5

70.8

70.7

70.7

73.5

71.1

Answer 1:

2. A professor records the number of students who complain
each week throughout the semester. If the class size is forty students, what
are 3-sigma control limits for this class? Construct a control p-chart and
interpret the data. Is the process in
control? (20 points)

Week number

Complaints

1

5

2

2

3

7

4

1

5

3

6

2

7

8

8

1

9

3

10

5

11

4

12

6

13

3

14

1

15

4

Answer 2:

3. A department store chain is designing a layout for a new store. The
store manager wants to provide as much convenience as possible for her
customers. Based on historical data, the number of trips between departments
per hour is given in the following closeness matrix. A block plan showing a
preliminary layout is also shown.

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.gif”> Closeness Factors (Trips per hour)
1/O 2/S 3/H 4/T 5/A 6/E

.gif”>

1. Office Supplies (O) — 40 100 50 20 10
2. Sporting Goods (S) — 100 80 60 80
3. Hardware (H) — 70 100 50
4. Toys (T) — 70 90
5. Automotive (A) — 60
6. Electronics (E) —

OFFICE SUPPLIES

.gif”>

.gif”>SPORTING
GOODS

3. HARDWARE

4. TOYS

5.
AUTOMOTIVE

6. ELECTRONICS

Customer
travel between departments is restricted to the aisles shown in the block plan
as dotted lines.

CALCULATIONS
TABLE:

Dept. Pair

Closeness Factor (w)

Original Distance (dO)

w´
dO

Revision #1 Distance (d1)

w´
d1

1 – 2

1 – 3

1 – 4

1 – 5

1 – 6

2 – 3

2 – 4

2 – 5

2 – 6

3 – 4

3 – 5

3 – 6

4 – 5

4 – 6

5 – 6

TOTAL

Complete the calculations and fill in the table
above. Based on the table above answer
the following questions.

a) What is the total expected weighted-distance
score between Office Supplies and Hardware? (4 points)

b) What is the total weighted-distance score
between Hardware and Toys? (4 points)

c) What is the total weighted-distance score for
the entire store? (4 points)

d) A suggestion has been made to switch Hardware
and Automotive. What would the total weighted-distance score for the entire
store if these two departments were switched? (4 points)

e) Based on your calculations, would you
recommend that Hardware and Automotive be switched? (4 points)

Answer 3:

4. Balance the assembly line for the tasks contained in the table. The
desired output is 240 units per day. Available production time per day is 480
minutes.

Work Element

Time (Sec.)

Immediate Predecessor(s)

A

40

—

B

45

—

C

55

A

D

55

B

E

65

B

F

40

C,D

G

25

D,E

a)
What is the desired Cycle time in seconds? (4 points)

b) What is the theoretical minimum
number of stations? (4 points)

c)
Use trial and error to work out a solution in the table below. Your efficiency should be at least 90%. (10
Points)

Station

Candidates

Choice

Work-Element
Time (Sec)

Cumulative Time (Sec)

Idle Time

d)
Calculate the efficiency of your solution. (2 points)

Answer 4:

5. A manufacturer’s research
and development center must expand by building a new facility. The search has
been narrowed to five locations, all of which are acceptable to management. The
assessment of these sites is being made on the basis of the five subjective
location factors that follow. Get research paper samples and course-specific study resources under   homework for you course hero writing service – Manage ment has agreed to use a five-point scale
(Excellent = 5, and Poor = 1) to quantify and compare their subjective opinions
about the relative goodness of the sites. The weight reflects the importance of
each factor in the decision.

Locations

Factor

Weight

A

B

C

D

E

Labor climate

0.30

4

2

1

4

2

Proximity to markets

0.30

5

3

3

4

4

Quality of life

0.15

1

3

2

1

5

Proximity to suppliers

0.15

2

5

3

4

3

Taxes

0.10

4

4

4

1

3

Calculate the weighted score for each alternative. Which location
would you recommend?(15 points)

Answer 5:

6. Complete the following MPS Record (15 points)

Lot Size

130

Lead Time

1

Quantity on Hand

45

1

2

3

4

5

6

7

8

9

10

Forecast

25

25

25

25

50

50

50

50

40

20

Customer Orders (booked)

30

20

5

8

2

Projected On-Hand Inventory

MPS Quantity

MPS start

Available to Promise Inventory

Answer 6:

7. Use the bill of materials and inventory records to determine the
quantity of purchased items necessary to assemble 20 end items if the
manufacturer uses lot-for-lot ordering. There are no end items currently on
hand, and none of the components have any scheduled receipts. (20 points)

Component

On-hand

Component

On-hand

A

5

D

15

B

75

E

3

C

10

F

20

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Answer 7:

8.
Use the table below to answer
the following questions.

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a)
Use the information in the Table above, what is the throughput time for
the process, assuming that the Call Center is always busy and has customers
waiting to be processed? (5 points)

b)
Use the information in Table above, what is the process bottleneck? (5
points)

c) Use the information in Table above, what
is the 8-hour capacity for the process? (5 points)

d) Use the information in Table above, where
would you expect customer wait times to occur? (5 points)

Answer 8: