# O service rates are all servers equal are they

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Chapter 11 / Exercise 1
Strategic Management: Theory & Cases: An Integrated Approach
Hill/Schilling
Expert Verified
o Service Rates: Are all servers equal? Are they motivated? Do they get tired/bored? Stressed? What happens if we add more employees? Full-time, part-time, seasonal? Experienced? Type of customers - Prepared/unprepared customer, Big/small orders, high/low maintenance customers, Paying cash vs. check o Single: FCFS, sense of fairness o Multiple: jockeying Discipline/Priority Rules o First come, first served o Earliest due date or shortest processing time o Reservations or appointments possible? o Emergency situations? o Preemptive discipline (VIP lines, frequent fliers) Finite vs. Infinite Populations, Balking, Reneging, Jockeying Queuing Problems - Slides and Problem Set Know how to do all of the problems on the Additional Problem Set Lab Exercise #3!!! VERY IMPORTANT Be able to solve all of these problem types: A. Arrival and Service Rates, Service Utilization Factor - What are they? Calculate them. Be able to read Arrival and Service Rates. Be able to covert to /hour, per minute, and per second. B. Single Server Models - Formulas (n, t, l, s, P), interpreting data C. Multiple Server models - Interpreting data (Rather than making long lists, concentrate on practicing problems. Understand underlying themes.) Be aware that the primary examples given in the lecture and charts or illustrations used in class may also be tested.
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Chapter 11 / Exercise 1
Strategic Management: Theory & Cases: An Integrated Approach
Hill/Schilling
Expert Verified
SCM 300 – MODULE 06 Study Packet
SCM 300 – MODULE 06 Study Packet Practice Questions: Do you understand the statistical material? This may help answer that question. While this may be useful for some students, please understand that some exam questions are very likely going to be much more difficult. Use the following Table to answer questions 1 through 4 NUMBER OF SERVERS 1 2 3 RHO (  ) 0.60 0.30 0.20 P 0 0.400 0.538 0.548 P 1 0.240 0.323 0.329 P 2 0.144 0.097 0.099 P 3 0.086 0.029 0.019 P 4 0.052 0.009 0.003 P 5 0.031 0.004 0.001 t s (minutes) 3.00 1.319 1.212 n s 1.50 0.660 0.606 1. On average, how much time does the average customer spend in the SYSTEM when there is ONE SERVER in the SYSTEM?
2. What percentage of the time would a server be busy in a FIVE-server model?
3. What percentage of new arrivals are served immediately in a TWO-server model?
4. What is the probability in a single server model that at least one customer is in the system? A. 40% B. 60% C. 24% D. 76% E. None of the Above