Assignment 11 Solutions- Queuing Theory
1)
(a) the average time an lawn mower is out of service for repair,
1
2
3
This is
1
2
3
days since the units we are using are days.
(b) the average number lawn mowers waiting for repair,
5.797
This is
5.797
lawn mow
Homework Assignment
1. Jesse James is a lawn mower repairman. Lawn mowers arrive for repair according to a Poisson
distribution at an average rate of 4 per day. He services the lawn mowers according to an exponential
distribution averaging 4.6 repairs per
Assignment 2 Linear Programming
Mary Custards is a pie shop that specializes in custard and fruit pies. It makes delicious
pies and sells them at reasonable prices so that it can sell all the pies it makes in a day.
Every dozen custard pies nets Mary Cust
LEcolier Cassiopee
Professor Skordi
05/06/2016
Project Management Assignment
For the Project network shown answer the following questions based on the data provided. You can use
Excel to assist you in solving the problem.
A
B
E
G
J
D
C
I
F
Activity Expect
Assignment 1
To raise awareness of individuals own blood pressure, the Heart Association plans to install a free
blood pressure testing booth in Tyler Mall for the week. Previous experience indicates that, on the
average, 10 persons per hour request a tes
ACTIVITY TIMES
IMMEDIATE
3-TIME ESTIMATE
Activity
A
B
C
D
E
F
Node
A
B
C
D
E
F
a
m
b
KNOWN
m and s
m
4
3
2
3
2
5
s
PREDECESSORS
Node
Predecessor
C
D
E
E
F
B
B
A
C
E
CRITICAL PATH ANALYSIS
MEAN
12
STANDARD DEVIATION*
0
VARIANCE*
0
PROBABILITY COMPLETE BEFO
ACTIVITY TIMES
IMMEDIATE
3-TIME ESTIMATE
Activity
A
B
C
D
E
F
G
H
Node
A
B
C
D
E
F
G
H
a
m
b
KNOWN
m and s
m
13
7
7
9
11
6
10
8
s
PREDECESSORS
Node
Predecessor
C
D
E
F
F
G
G
H
H
A
B
B
C
D
C
D
F
E
CRITICAL PATH ANALYSIS
MEAN
34
STANDARD DEVIATION*
0
VARIAN
ACTIVITY TIMES
IMMEDIATE
3-TIME ESTIMATE
Activity
A
B
C
D
E
F
G
H
I
J
K
Node
a
m
b
A
B
C
D
E
F
G
H
I
J
K
7
1
11
7
1
6
5
9
2
5
8
10
2
15
14
2
8
7
10
3
7
12
24
3
28
17
3
11
10
11
4
9
17
KNOWN
m and s
m
s
PREDECESSORS
Node
Predecessor
B
D
E
E
F
G
H
I
I
J
J
J