Principles Of Operations Management
11th Edition
ISBN: 9780135173930
Author: RENDER, Barry, HEIZER, Jay, Munson, Chuck
Publisher: Pearson,
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Textbook Question
Chapter 15, Problem 30P
Given the following demand for waiters and waitresses at S. Ghosh Bar and Grill, determine the minimum wait staff needed with a policy of 2 consecutive days off.
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Explain PERSONNEL SCHEDULING IN SERVICES?
Panini, a popular sandwich shop, offers 3 types of sandwiches: grilled vegetables, grilled chicken, and pastrami. The table below provides demand data:
Grilled Vegetables
Grilled Chicken
Pastrami
Demand per hour
25
9
12
There are up to five steps in the process of making sandwiches listed below with activity times (if no activity time, then than step is not done for that sandwich). Only 50% of customers want their sandwich toasted, no matter which sandwich is ordered.
Step
Grilled Vegetables(in minutes)
Grilled Chicken(in minutes)
Pastrami(in minutes)
Cut bread
1
1
1
Grill
1.2
1.2
Slice meat
2
Toast
1.2
1.2
1.2
Wrap
0.8
0.8
0.8
Suppose Panini employs 1 worker at each step.
a) Does Panini have enough capacity to fulfill the current demand for sandwiches?
(b) What is the current capacity cushion for Panini? (as a %)
c) If demand for Pastramis increase with the percentage indicated below, how much additional workers should Panini hire (if any), and where…
Problem 2:
Suppose you observe the following arrivals and departures from a single-server queueing system.
Observations begin at time 100.0 (with no one in the queue) and end at 120.0.
Customer Time Customer
#
Arrives to Queue
83
84
85
86
87
88
89
90
91
100.4
101.5
105.1
106.8
108.1
113.5
117.9
118.0
119.9
Time Customer Departs
from Queue and Goes
Into Service
102.3
108.3
109.5
110.6
112.9
114.2
117.9
119.2
After 120.0
Time Customer
Departs From
Server
108.3
109.5
110.6
112.9
114.2
116.3
119.2
After 120.0
After 120.0
1) What is the sample mean, sample standard deviation, minimum, and maximum of the waiting
time in the queue observed for the customers who arrived at, and departed from, the queue
during the time interval [100.0, 120.0]?
Chapter 15 Solutions
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. 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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