Queue Models
Parameters
Models
Description
Symbol
Value
Single Server
Arrival rate
Service rate
Number of servers
Maximum system size / Population size
S
M
0.2
4
1
3
[above grid shows parameters require
Model Outputs
Description
Average number of customer
Week 6 HM
Problem 1
a) Influenza incapacitates some of the factory workers, and the
available labour is reduced to 300 hours. How will this affect
profits?
ANS: The labor resource appears in the first constraint, in the first row of
the second table ($B$1
43377459
Hanxiao Wang
stat279
a) Decision variable: number of each raw fibers that should be
transported to each distribution centre.
b) It is an unbalanced problem. Total demand equals 12650,
and total supply equals 13850. Therefore, a dummy column
shoul
43406440
Qi Tian
stat279
a) Decision variable: amount of each raw fibers that should be
transported to each distribution centre.
b) It is an unbalanced problem. Total demand equals 12650,
and total supply equals 13850. Therefore, a dummy column
should be
STAT 279 Assignments
Problem 1
Define decision variables and formulate a linear program to determine the achievable
profit if the assembly line works perfectly all month, without breaking down or
needing recalibration.
Solution:
Definition of decision var