Production and Operations Analysis, Seventh Edition
7th Edition
ISBN: 9781478623069
Author: Steven Nahmias, Tava Lennon Olsen
Publisher: Waveland Press, Inc.
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Chapter 7.1, Problem 1P
Summary Introduction
Interpretation: Following three examples of services has been discussed
Concept Introduction: Service is only for the customer and aim that it should be intangible, time-perishable and involves the customer as co-producer because without customer there is no importance of service. Customer is only one who avails the services.
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Note: In chapter 11, section 11.3 of the Stevenson text, level and chase plans are covered with examples (example 1, and example 2); chapter 11 Stevenson lecture power point slides 23 to 32 cover chase and level plans with an example; see lecture video, 12.21 mins to 26.55 mins.
3)
a) Huurhun Printing in Ulaanbaatar has four typesetters and four jobs to be completed as given in the table. The $ entries represent the firm’s estimate of what it will cost for each job to be completed by each typesetter. Find the optimal assignment of jobs to typesetters so as to minimize the total costs.
Typesetters
Jobs
A
B
C
D
42HG
$7
$3
$4
$8
19DT
$5
$4
$6
$5
47ST
$6
$7
$9
$6
17VT
$8
$6
$7
$4
b) Huurhun Printing in Ulaanbaatar has the following printing jobs waiting to be processed at its work center. The jobs are assigned sequentially upon arrival. All dates are specified as days from today. In what sequence should the…
Galaxy Co. sells virtual reality (VR) goggles, particularly targeting customers who like to play video games. Galaxy procures each pair of goggles for $150 from its supplier and sells each pair of goggles for $300. Monthly demand for the VR goggles is a normal random
variable with a mean of 157 units and a standard deviation of 41 units. At the beginning of each month, Galaxy orders enough goggles from its supplier to bring the inventory level up to 140 goggles. If the monthly demand is less than 140, Galaxy pays $20 per pair of
goggles that remains in inventory at the end of the month. If the monthly demand exceeds 140, Galaxy sells only the 140 pairs of goggles in stock. Galaxy assigns a shortage cost of $40 for each unit of demand that is unsatisfied to represent a loss-of-goodwill among its
customers. Management would like to use a simulation model to analyze this situation. (Use at least 1,000 trials.)
(a) What is the average monthly profit (in dollars)? (Round your answer to the…
Hospital administrators must schedule nurses so that the hospital's patients are provided adequate care. At the same time, careful attention must be paid to keeping costs down. From historical records, administrators can project the minimum number of nurses required
to be on hand for various times of day and days of the week. The objective is to find the minimum total number of nurses required to provide adequate care.
Nurses start work at the beginning of one of the four-hour shifts given below (except for shift 6) and work for 8 consecutive hours. Hence, possible start times are the start of shifts 1 through 5. Also, assume that the projected required number of nurses factors in time
for each nurse to have a meal break.
Formulate and solve the nurse scheduling problem as an integer program for one day for the data given below. (Let x = number of nurses who start work at the beginning of shift t, t = 1, 2, 3, 4, 5.)
Shift
Time
Minimum Number of Nurses Needed
1
12:00 A.M. - 4:00 A.M.…
Chapter 7 Solutions
Production and Operations Analysis, Seventh Edition
Ch. 7.1 - Prob. 1PCh. 7.1 - Prob. 2PCh. 7.1 - Prob. 3PCh. 7.1 - Prob. 4PCh. 7.1 - Prob. 5PCh. 7.1 - Prob. 6PCh. 7.1 - Prob. 7PCh. 7.2 - Prob. 8PCh. 7.2 - Prob. 9PCh. 7.2 - Prob. 10P
Ch. 7.3 - Prob. 11PCh. 7.3 - Prob. 12PCh. 7.3 - Prob. 13PCh. 7.3 - Prob. 14PCh. 7.3 - Prob. 15PCh. 7.3 - Prob. 16PCh. 7.3 - Prob. 18PCh. 7.4 - Prob. 19PCh. 7.4 - Prob. 21PCh. 7.4 - Prob. 22PCh. 7.4 - Prob. 23PCh. 7.5 - Prob. 24PCh. 7.5 - Prob. 25PCh. 7.5 - Prob. 26PCh. 7.5 - Prob. 27PCh. 7.8 - Prob. 28PCh. 7.8 - Prob. 29PCh. 7.8 - Prob. 30PCh. 7.8 - Prob. 32PCh. 7.8 - Prob. 34PCh. 7.8 - Prob. 35PCh. 7.8 - Prob. 36PCh. 7 - Prob. 38APCh. 7 - Prob. 39APCh. 7 - Prob. 40APCh. 7 - Prob. 41APCh. 7 - Prob. 42APCh. 7 - Prob. 43APCh. 7 - Prob. 44APCh. 7 - Prob. 45APCh. 7 - Prob. 46AP
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