Chapter 10
OneSample Tests of Hypothesis
16.
A null hypothesis makes a claim about a _.
A. Population
parameter
B. Sample
statistic
C. Sample
mean
D. Type II
error
A null hypothesis is a statement about the value of a population parameter.
17.
Define the
Chapter 09
Estimation and Confidence Intervals
16.
The mean number of travel days per year for salespeople employed by three
hardware distributors needs to be estimated with a 0.90 degree of confidence. For
a small pilot study, the mean was 150 days and t
Chapter 8
Chapter 8
25. To study the population of consumer perceptions of new technology, sampling of
the population is preferred over surveying the population because _.
A. sampling is more
accurate
B. we can compute zscores
C. it is
quicker
D. sampling
Chapter 07
Continuous Probability Distributions
Multiple Choice Questions
16.
The shape of any uniform probability distribution is _.
A. Negatively
skewed
B. Positively
skewed
C. Rectangul
ar
D. Bellshaped
The uniform probability distribution is rectangul
Chapter 6
Multiple Choice Questions
16.
If the variance is 3.6 grams, what is the standard deviation?
A. 0.60
0
B. 1.89
7
C. 6.00
0
D. 12.9
6
The standard deviation is the square root of the variance; the square root of 3.6 is
1.897.
AACSB: Analytic
Acces
Chapter 05
A Survey of Probability Concepts
Multiple Choice Questions
16.
The National Center for Health Statistics reported that of every 883 deaths in recent
years, 24 resulted from an automobile accident, 182 from cancer, and 333 from heart
disease. Wh
The following matrix shows the costs for assigning Individuals A, B, C, and D to Jobs 1, 2, 3,
and 4. Solve the problem showing your final assignments in order to minimize cost and total
cost.
Individuals
A
B
C
D
1
$6000
4000
5000
7000
Jobs
2
$5000
6000
6
Kechara Soup Kitchen (KSK) was a nongovernmental organization and nonprofit
organization that seeks to help the homeless and poor people in our society. According to
Kechara (2016), KSK was founded by His Eminence Tsem Rinopoche, the Spiritual Guide of
Problem 2.8
Selection Criterion (Risk Factors)
Price of service from outsourcer
Nearness of facilities to client
Level of technology
History of successful outsourcing
Total Weighted Score:
Criteria Weight England Canada
0.1
2
4
0.6
3
1
0.2
3
2
0.1
3
2
2.9
Selection Criterion
Criteria
(Risk Factors)
Price of service from
outsourcer
Nearness of facilities
to client
Level of technology
History of successful
outsourcing
Weight
England
Canada
0.1
1
1
0.6
1
3
0.2
1
3
0.1
3
1
Total Weighted
Score:
Selection Crite
Income Statement
The statement of profit or loss for the period comprised of net
revenues less expenses for the period
Operating Income (EBIT)
Profit from sales minus total operating expenses
Interest Expense
Interest paid to suppliers of the firm's ou
Activity
A
B
C
D
E
F
G
H
I
J
K
a
m
Entering Time Data
b
4 pts
Immediate Predecessor(s)
C
B, D
A, E
A, E
F
G
C
H, I
Immediate Successor(s)
Expected Time
Variance
Find Immediate Successor(s) Compute Expected Times and Variances
2 pts
4 pts
ES
EF
Forward Pas
QM3345: Operations Management
Module B: Linear Programming
1. The Southeast feed, a hog feedlot operation near Montgomery, Alabama, blends
ingredients to make lowcost feeds for its hogs. Oats and corn are the principal
ingredients of the hog feed. The cu
Module B
Linear Programming
Today many of the resources needed as inputs to
operations are in limited supply.
Linear programming (LP)
refers to several related mathematical
techniques used to allocate limited resources.
is one way that operations manage
QM3345: Operations Management
Practice Problem: Chapter 12: Inventory Management
Annual demand of a product is 43,800 units, with standard deviation of 10 units. Annual holding cost is $
0.40 per unit. The order cost is $ 20 per order. Lead time is 7 days
C
Quiz #4:
1.
Annual demand of a product is 65,000 units, with standard deviation of 13units. Assume
demand is not constant. Annual holding cost is $0.80 per unit. The order cost is $ 25 per
order. Lead time is 4 days. The desired service probability is 8
C
Quiz #5:
The following matrix shows the costs for assigning Individuals A, B, C, and D to Jobs 1, 2, 3, and 4.
Solve the problem showing your final assignments in order to minimize cost and total cost.
Individuals
A
B
C
D
1
$1000
500
650
1500
Jobs
2
$12
C
Quiz #5:
The following matrix shows the costs for assigning Individuals A, B, C, and D to Jobs 1, 2, 3, and 4.
Solve the problem showing your final assignments in order to minimize cost and total cost.
Individuals
A
B
C
D
1
$1000
500
650
1500
Jobs
2
$12
QM3345: Operations Management
Practice Problem: Chapter 12: Inventory management
Annual demand of a product is 43,800 units, with standard deviation of 10 units. Annual holding cost is $
0.40 per unit. The order cost is $ 20 per order. Lead time is 7 days
A
Quiz #1:
1. A project has been defined to contain the following network and list of activities:
Time Estimates (days)
Activity
Immediate
Predecessor
a
m
b
Expected
Times
Variances
A
B
C
D
E
F
G
H
A
A
B
C
C
D, E, F
G
6
4
8
17
10
10
11
5
8
6
11
18
11
10
1
A
Quiz #2: Supplement 07: BEP
Name: _
South Alabama Manufacturing Company has purchased a certain component part from Montgomery Part
Company for $80 per part. Recently, improvements in operations and reduce product demand have cleared up some
capacity in
ROP
CC
Stockout
200
$ 15.00
$ 70.00
Demand During Lead Time
Value 1
Value 2
Value 3
Value 4
Value 5
Probability
0
0.1
100
0.1
200
0.2
300
0.4
400
0.2
Safestock out
CC cost
stockout cost
0
0 $
5,600.00 $ 5,600.00
100 $ 1,500.00 $
1,400.00 $ 2,900.00
200 $
In cyclecounting, the frequency of item counting and stock verification usually varies from item to item depending upon the
*Employee has lengthy conversations with boss(not job related).
By agreement with herworkers, Jill allows a 10% fatigue factor and
Month
Sales
Jan
20
Feb
21
alpha
0.3
alpha forecast
Mar
15
Apr
14
May
13
Jun
16
Jul
17
0.1
Aug
Sept
18
0.1
Oct
20
0.1
18
Nov
20
0.2
18.6
Dec
21
0.2
19.02
23
0.3
19.614
20.6298
20.6
21.33333
Activity
A
B
C
D
E
F
G
H
I
Time (in weeks)
10
6
3
6
8
5
5
5
4
A
B
C
D
E
F
G
H
I
Time (in weeks)
10
6
3
6
8
5
5
5
4
Activity
Immediate Predecessor(s)
A
A
B
B
C
E, F
D
G, H
path1
1
1
path2
1
1
path3
1
1
1
1
1
1
31
1
1
1
1
1
33
27
D
B
H
E
A
C
F
G
I
EMV
Expected monetary value
Probability
On Time
One
Week
Late
Two
Weeks
Late
Three
Weeks
Late
Internal
Engineers
0.3
0.4
0.3

Internal
Engineers
External
Engineers
0.2
0.3
0.3
0.2
External
Engineers
Joint
Design
0.1
0.4
0.3
0.2
Joint
Design
Option
Option