PRIN.OF OPERATIONS MANAGEMENT-MYOMLAB
11th Edition
ISBN: 9780135226742
Author: HEIZER
Publisher: PEARSON
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Chapter 15, Problem 26P
a)
Summary Introduction
To sequence: The given jobs based on the earliest due date (EDD).
b)
Summary Introduction
To calculate: The average completion time.
c)
Summary Introduction
To calculate: The average job lateness.
d)
Summary Introduction
To calculate: The average number of jobs.
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Courtney is a programmer receiving requests each week to analyze a large data base. Five jobs were on her desk Monday morning, and she must decide in what order to write the code. Assume that all jobs
arrived today (day 1 and hour 1), in the order shown below. Courtney has assigned the number of hours required to do the coding as noted. Note that Courtney works an 8-hour day and today is a work day.
DURATION (HOURS
REQUIRED)
17
JOB
A
B
C
D
E
DUE DATE (HOURS
HENCE)
36
22
18
14
8
a) Sequence the jobs according to EDD.
According to the EDD rule, the sequence of jobs should be E, D, C, B, A
b) What is the average completion (flow) time?
The average completion (flow) time is
c) What is the average job lateness?
The average job lateness is
d) What is the average number of jobs in the system?
The average number of jobs in the system is jobs (round your response to one decimal place).
days (round your response to one decimal place).
days (round your response to one decimal place).
9
2
6
5
Dan's Auto Detailing business performs two major activities: exterior cleanup and interior detailing. Based on the size of car and condition, time
estimates for six cars on Monday morning are as shown in the accompanying table.
Car Number
1
5 6
Exterior
Interior
55 75
4
65
35 50 60 45
90
35 40
a. Sequence the cars so that all exterior cleanup is done first and total completion time is minimized.
The sequence is -Select-- -Select-
-Select-
-Select-
-Select-- -Select-
2
3
80 20
Chapter 15 Solutions
PRIN.OF OPERATIONS MANAGEMENT-MYOMLAB
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. 11PCh. 15 - Prob. 12PCh. 15 - Prob. 13PCh. 15 - Prob. 14PCh. 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 - Prob. 24PCh. 15 - Prob. 25PCh. 15 - Prob. 26PCh. 15 - Prob. 27PCh. 15 - Prob. 28PCh. 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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