Question
In: Operations Management
Consider the following information on job times and due dates (in hours). Job Job Time Due...
Consider the following information on job times and due dates (in hours). Job Job Time Due Date A 4.00 8.00 B 1.50 5.00 C 4.50 9.00 D 4.25 17.00 E 2.25 6.00 You are asked to determine the processing sequence using Shortest Processing Time (SPT) and Earliest Due Date (EDD) rule; and to decide which sequence is better for average job flow time and the average job tardiness performance measures. FORMAT FOR ENTRIES: • Sequence should be entered in the following format: D-E-B-C-A (with no spaces) • Values for performance measures will be entered with two decimals after dot (5.00) Enter the sequence using SPT rule: B-E-A-D-C For SPT sequence, provide the following performance measure values: Average job flow time: and Average job tardiness: . Enter the sequence using EDD rule: For EDD sequence, provide the following performance measure values: Average job flow time: and Average job tardiness: . Based on average job flow time, which sequence is better? (Enter SPT, EDD, EITHER): Based on average job tardiness, which sequence is better? (Enter SPT, EDD, EITHER)
Solutions
keosha answered 1 year agoRelated Solutions
Priority Dispatching Rules Consider the following data: Job Remaining Processing time (days) Remaining time until due...
Priority Dispatching Rules
Consider the following data:
Job
Remaining Processing time
(days)
Remaining time until due date
(days)
Critical ratio
(?)
A
20
30
B
30
50
C
10
25
D
16
80
E
18
12
Calculate for each job the relative critical ratio.
Analyze the calculated critical ratio.
Basing on the calculated CR, specify the scheduling order of
each job. Justify your answer.
Specify and explain a second dispatch rule that can be adopted.
Among the two rules...
Given the following mix of job, job lengths, and arrival times, assume a time slice of...
Given the following mix of job, job lengths, and arrival times,
assume a time slice of 10 and compute the completion for each job
and average response time for the FCFS, SJN, SRT, and Round Robin
Scheduling Algorithm.
jobs arrival time CPU cycle(ms)
A 0 16
B 3 2
C 5 11
D 9 6
E 10 1
F 12 9
G 14 4
H 16 14
I 17 1
J 19 8
Consider each of the following systems for long times, at which their behacioor is time invariant....
Consider each of the following systems for long times, at which
their behacioor is time invariant. Identify each system as
equilibrium or steady state.
1) A hose supplies water at a constant rate to a bucket with a
hole in it. A constant water level is maintained
2)A mixture of reacting gas
molecules is constrained to a fixed temperature, e.g., H2, O2 and
H2O at 600 K.
3) Ice floats in water, thermally
insulated from its surroundings.
4) Molten steel...
Consider each of the following systems for long times, at which their behacioor is time invariant....
Consider each of the following systems for long times, at which
their behacioor is time invariant. Identify each system as
equilibrium or steady state.
1) A hose supplies water at a constant rate to a bucket with a
hole in it. A constant water level is maintained
2)A mixture of reacting gas molecules is constrained to a fixed
temperature, e.g., H2, O2 and H2O at 600 K.
3) Ice floats in water, thermally insulated from its
surroundings.
4) Molten steel...
A time study was conducted on a job that contains four elements. The observed times and...
A time study was conducted on a job that contains four elements.
The observed times and performance ratings for six cycles are shown
in the following table.
OBSERVATIONS (minutes per cycle)
Element
Performance
Rating
1
2
3
4
5
6
1
90
%
0.44
0.50
0.43
0.45
0.44
0.46
2
85
1.50
1.56
1.47
1.51
1.49
1.52
3
110
0.84
0.89
0.77
0.83
0.86
0.80
4
100
1.10
1.14
1.08
1.16
1.16
1.26
a. Determine the average cycle time for...
You will invest the following cash flows into an investment account on the following dates. TIME ...
You will invest the following cash flows into an investment
account on the following dates.
TIME
CASH FLOWS
--------------------------------------------------------------
1/1/23
+$6500
1/1/24
+$6500
1/1/25
+$6500
1/1/26
+$6500
1/1/27
+$6500
How much will you have in your account on 1/1/2040 (Assume all
cash flows earn 10% compounded annually)?
You will invest the following cash flows into an investment account on the following dates. TIME...
You will invest the following cash flows into an investment
account on the following dates.
TIME CASH FLOWS
--------------------------------------------------------------
1/1/23 +$6500
1/1/24 +$6500
1/1/25 +$6500
1/1/26 +$6500
1/1/27 +$6500
Assume an interest rate of 10%, compounded annually. (The stated
rate is 10%, compounded annually.) How much will you have in your
account on 1/1/27 the instant after you make that last investment
of $6500 on 1/1/27?
Average flow and average delay based on FCFS, EDD, and SPT Job Job time (days) Due...
Average flow and average delay based on FCFS, EDD, and SPT
Job
Job time (days)
Due date (days from now)
A
12
15
B
6
24
C
14
20
D
3
8
Suppose that a company has a series of liabilities with the due dates as follows:: In...
Suppose that a company has a series of liabilities with the due
dates as follows:: In 6 months: $2,000,000, In 1 year: $2,200,000,
In 1.5 years: $2,500,000, In 2 years: $3,200,000, In 2.5 years:
$3,700,000, In 3 years: $4,300,000, In 3.5 years: $4,700,000, In 4
years: $5,100,000. The company is considering investing in four
different bonds: (1) a 1-year Treasury Bill with a face value of
$1,000 and no coupon, (2) a 2-year Treasury note with a face value
of...
. The following information is from the materials requisitions and time tickets for Job 9-1005 completed...
.
The following information is from the materials requisitions and
time tickets for Job 9-1005 completed by Great Bay Boats. The
requisitions are identified by code numbers starting with the
letter Q, and the time tickets start with W. At the start of the
year, management estimated that overhead cost would equal 110% of
direct labor cost for each job.
Determine the total cost on the job cost sheet for Job
9-1005
Date
Document
Amount
7/1/2017
Q-4698
$
1,250
7/1/2017...
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