EBK PRINCIPLES OF OPERATIONS MANAGEMENT
10th Edition
ISBN: 8220102744059
Author: HEIZER
Publisher: PEARSON
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Question
Chapter 15, Problem 2P
Summary Introduction
To draw: The Gantt chart for the given information.
Introduction: The Gantt chart is the kind of chart that is used to represent the amount of job done within a particular period. It is used to graphically represent the amount of job planned and done in a certain period.
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QUESTION 5 (SCHEDULING: CYCLICAL SCHEDULING)
15.26 Daniel's Barber Shop at Newark Airport is open
7 days a week but has fluctuating demand. Daniel Ball is inter-
ested in treating his barbers as well as he can with steady work
and preferably 5 days of work with two consecutive days off.
His analysis of his staffing needs resulted in the following plan.
Schedule Daniel's staff with the minimum number of barbers.
DAY
MON. TUE. WED. THU. FRI. SAT. SUN.
6
5
5
5
6
4
3
Barbers
needed
Question 1
Four floral arranging jobs are to be carried out across three stations: A (Arrange), B (Bag), C (crop) shown. The station sequences and job times in minutes are shown below, along with the due dates for each job. Using an "earliest due date" job dispatching priority rule, which, if any, of the jobs in will be late? Tip: create a Gantt chart schedule before answering Questions 4 & 5.
a. Jobs 2 & 3
b. Jobs 3 & 4
c. Job 3
d. Job 4
e. None of the jobs will be late
QUESTION 5
A schedule for two processors has been created for the following project which has a finishing time of 30.
A(6)
B(11)
Start
C(1)
F(5)
G(4)
D(9)
FO
●
H(5)
E(8)
●
Which is the following statements is applicable to the schedule?
O A. The schedule is optimal because the finishing time is equal to the critical time.
O B. The schedule is optimal because the finishing time is equal to the average time.
End
●
O C. The schedule is not optimal because the finishing time is greater than the critical time.
O D. The schedule is not optimal because the finishing time is greater than the average time.
O E. The schedule is not optimal because the finishing time is greater than both the average time and the critical time.
O F. The schedule is optimal because the finishing time is less than the critical time.
O G. The schedule is optimal because the finishing time is less than the average time.
OH. The schedule is not optimal because the finishing time is less than the critical time.
OI. The…
Chapter 15 Solutions
EBK PRINCIPLES OF OPERATIONS MANAGEMENT
Ch. 15 - Prob. 1EDCh. 15 - Prob. 1DQCh. 15 - Prob. 2DQCh. 15 - Prob. 3DQCh. 15 - Prob. 4DQCh. 15 - Prob. 5DQCh. 15 - Prob. 6DQCh. 15 - Prob. 7DQCh. 15 - Prob. 8DQCh. 15 - Prob. 9DQ
Ch. 15 - Prob. 10DQCh. 15 - Prob. 11DQCh. 15 - Prob. 12DQCh. 15 - Prob. 13DQCh. 15 - Prob. 1PCh. 15 - Prob. 2PCh. 15 - Prob. 3PCh. 15 - Prob. 4PCh. 15 - Prob. 5PCh. 15 - Prob. 6PCh. 15 - Prob. 7PCh. 15 - Prob. 8PCh. 15 - Prob. 9PCh. 15 - Prob. 10PCh. 15 - Prob. 15PCh. 15 - Prob. 16PCh. 15 - Prob. 17PCh. 15 - Prob. 18PCh. 15 - Prob. 19PCh. 15 - Prob. 20PCh. 15 - Prob. 21PCh. 15 - Prob. 22PCh. 15 - Prob. 23PCh. 15 - Daniels Barber Shop at Newark Airport is open 7...Ch. 15 - Given the following demand for waiters and...Ch. 15 - Prob. 1CSCh. 15 - Prob. 2CSCh. 15 - Prob. 3CSCh. 15 - Prob. 4CSCh. 15 - Prob. 1.1VCCh. 15 - Prob. 1.2VCCh. 15 - Prob. 1.3VCCh. 15 - Prob. 2.1VCCh. 15 - Prob. 2.2VCCh. 15 - Why is seniority important in scheduling servers?Ch. 15 - Prob. 2.4VC
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- Q. 3 What is the total makespan from Question 1? Question 1: Four floral arranging jobs are to be carried out across three stations: A (Arrange), B (Bag), C (crop) shown. The station sequences and job times in minutes are shown below, along with the due dates for each job. Using an "earliest due date" job dispatching priority rule, which, if any, of the jobs in will be late? Answer was Job 4 Group of answer choices a. 100 b. 130 c. 150 d. 170 e. 200arrow_forwardQuestion 1) Scheduling If the following jobs are sequenced according to the FCFS rule Job Processing Time (days) Due Date A 8 12 B 6 15 C 11 17 D 5 10 E 3 8 What is the mean tardiness (in days) for all jobs? What is the mean completion time in days for all jobs? What is the maximum job tardiness (in days)arrow_forwardQUESTION 6 The framing department has six jobs waiting to be processed as shown in Table 3 below. It is now time zero and all jobs are ready to begin. Each has only one operation remaining. Table 3 Jobs (In order of arrival) Processing Time Due Date A 5 12 B 7 18 C 8. 14 D 3 10 E 9 22 F 12 17 Using minimum flow time as the evaluation criterion, recommend the best rule to sequence the jobs from the list below: i. FCFS ii. SOT iii. EDD iv. STRarrow_forward
- Question fourThree jobs are to be scheduled on two machines A and B. Assume that the jobs are processed in the sequence A-B (A has to finish the job before B can continue the job). The processing times are: Job A B1 5 42 7 73 3 5Draw a Gantt chart that shows the schedule corresponding to the sequence 1-2-3 of the jobs.arrow_forwardQuestion 34 Consider the processing times and priorities for four jobs: Job Processing time (minutes) Weight/Priority (cost per minute) A 10 6 B 2 1 C 50 2 D 16 10 Assume the weighted shortest processing time (WSPT) rule is used. Which job should be processed third? Group of answer choices A B C Darrow_forwardQUESTION 4 (SCHEDULING: JOHNSON'S RULE) The following schedule was prepared by the production manager of Marymount Metal Shop: Determine a schedule that will result in the earliest completion of all jobs on this list. CUTTING POLISHING Job ABCDEFG (ii) (iii) (iv) Start 0 2 6 11 15 17 20 Finish 2 6 11 15 17 20 21 Start 2615232 11 20 24 Finish 5 9 13 20 23 24 28 What is the optimal sequence? Draw the time-phased chart. What is the total completion time? What is the total idle time at Polishing work centre?arrow_forward
- Dr. P. Question 4 An activity in a network diagram has an optimistic time estimate of five days, a most likely time estimate of seven days, and a pessimistic time estimate of 15 days. Its expected time is O 15 days O 10 days 08 days 07 days 0 5 days Previous Ne. MacBook Airarrow_forwardQuestion attachedarrow_forwardQuestion 1: the following table contains information concerning four jobs that are awaiting processing at a work center. Job Time Due Date Job A (Days) 15 (Days) 21 7 15 16 10 17 a. Sequence the jobs using (1) First come, first served, (2) Shortest processing time, (3) Earliest due date, and (4) Critical ratio. ASsume the list is by order of arrival. b. For each of the methods in part a, determine (1) the average job flow time, (2) the average tardiness, and (3) the average number of jobs at the work center. c. Is one method superior to the others?arrow_forward
- Question four Three jobs are to be scheduled on two machines A and B. Assume that the jobs are processed in the sequence A-B (A has to finish the job before B can continue the job). The processing times are: Job A 1 4 2 7 7 3 3 Draw a Gantt chart that shows the schedule corresponding to the sequence 1-2-3 of the jobs.arrow_forwardQuestion one: Suppose a radiology department uses FCFS to determine how to sequence patient x-rays. Assuming these data are representative, compare between FCFS and other scheduling rules should the radiology department be using and why Processing Time (Minutes) Due Time (Minutes from Now) Patient A 35 140 B 180 15 35 360 25 290 E 30 420 25 20 G 35 80 30 290 20 110 K 25 15 150 270 M 30 390 20 220 20 400 10 330 10 80 R 15 230 20 370 当 五犯 LEzlolalolclnarrow_forwardQuestion E only.arrow_forward
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