Max Stamp approves study abroad documents for the university. Students must wait in line with theirforms outside Max's office. One student at a time is allowed in his office and Max takes precisely 15minutes to evaluate each student's set of documents. On average 3 students per hour go to his officeand they spend on average 150 minutes trying to get their forms approved (time waiting in queueplus time in Max's office having him evaluate their documents).(Round your answer to 1 decimal place.)On average, how many students are waiting outside of Max'soffice?

A queuing system refers to models concerning systems of providing service where customers arrive,…

Answered: Max Stamp approves study abroad…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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In the welding operations of a bicycle manufacturer, a bike frame has a flow time of about 16.65 hours. The time in the welding operation is spent as follows: 3 hours waiting in front of the cutting machine for the batch to start, 3 hours waiting for the setup of the machine, 1 hour waiting for the other pieces of the batch to go through cutting, 1 minute at the cutting machine, and 3 hours waiting for the transfer to the welding machine. Then, at the welding machine, the unit spends 2 hour waiting in front of the welding machine for the batch to start, 2 hour waiting for the setup of the welding machine, 0.65 hour waiting for the other pieces of the batch to go through welding, 0.4 minute at the welding machine, and 2 hour waiting for the transfer to the next department. (Round your percentage answer to 4 decimal places.) Determine the exact flow time. What is the value-added percentage of the flow time? percent cetion MacBook Air ww.
XOX Corporation's management keeps track of the time it takes to process orders. During the most recent month, the following average times were recorded per order Wait time 15. 6 Inspection time 0.8 Process time 1.6 Move time 0.7 Queue time 3. 9 1. Percentage of manufacturing cycle time spent on non-value-added activities 2. Compute the delivery cycle time in days
A fast food restaurant receives a large volume of drive-through orders. A Lean Six Sigma team wants to understand the resources required to maintain a maximum target cycle time of 4 minutes. When demand fluctuates, personnel can be reassigned temporarily to increase the rate of processing. If the normal processing rate is 40 seconds per order, what should the maximum customers in process (queue) be before reassigning resources?
A new customer walks into SLC Barber Shop every 60 minutes on average, with a standard deviation of the interarrival times being 60 minutes. At SLC Barber Shop, the average service time is 30 minutes, with a standard deviation of service times being 45 minutes. 1. What is the utilization of the barber? 2. What is the CVa? 3. What is the CVp?
n a manufacturing process, a molded part spends 7 hours in inventory before being placed in a deburring machine, where the part is processed for 2 minutes. After deburring, the part spends 4 hours in inventory waiting for its turn on the polishing machine. The part then spends 7 minutes in polishing before waiting 6 hours in line to be painted. The part goes through a painting process that takes 7 minutes, then spends 11 hours in inventory before being shipped to the customer. What is the percentage of value-added time for the part?
Why is it important to view a batch-process operation as a network of interconnected queues?
Terex Corporation is a global manufacturer of aerial work platforms and materials processingmachinery. They design, build and support products such as large lifting equipment used inconstruction. The company makes most pieces to order and customizes them to meet customers’unique preferences.Terex maintained a manual system for yard management at their transfer centre in Washingtonthat is always full of lifting equipment, which generated excessive costs for what should have beena relatively simple process of locating customers’ units to prepare them for delivery. A wallboardand sticker system was a low-tech solution for identifying equipment items in the yard at Terex.While inexpensive in itself, the solution cost around six minutes every time an employee had tolocate a unit in the yard. It also required a considerable number of hours to be spent each monthtaking physical inventories. After a successful pilot, the company approved a new solution, replacingstickers, yard maps, and…
Hammond Inc. has analyzed the setup time on its computer-controlled lathe. The setup requires changing the type of fixture that holds a part. The average setup time has been 135 minutes, consisting of the following steps: Step Time (in minutes) Turn off machine and remove fixture from lathe 13 Go to tool room with fixture 15 Record replacement of fixture to tool room 18 Return to lathe 20 Clean lathe 17 Return to tool room 20 Record withdrawal of new fixture from tool room 12 Return to lathe 15 Install new fixture and turn on machine 8 Total setup time 138 Why should management be concerned about improving setup time? What do you recommend to Hammond Inc. for improving setup time? How much time would be required for a setup, using your suggestion in (b)?
An average of 1200 parts arrive to the EP chamber during an 8-hour workday. Each part goes through two stages of processing. At each stage, a single product is processed at a time, and processing takes an average of 15 seconds at the first station and 12 seconds at the second station. Inter-arrival times and service times are exponentially distributed. At the end of the second step, the product goes through a quality check. 5% of the parts fail the quality check and are sent back to the second stage of service. Parts exit the system only after they pass the quality check. Ignoring the time required to perform the quality check or in moving the part through the facility, what is the average cycle time for parts?
A cell-phone repair shop consists of three processes. Step 1 requires 4 minutes per unit, step 2 requires 6 minutes per unit and step 3 requires 2 minutes per unit. 40% of units that complete the third step require rework, which means those units must start the process over at step 2 (processing times are the same for units being reworked) and rework is always successful. Demand at the shop is 0.8 units per minute. Instruction: Round your answer to three decimal places. What is the capacity of the shop (in units per units per minute)? units per minute
It takes Carissa 45 minutes to finish a 60-ietm test in math. At this rate, how many minutes will it take her to finish a 120-item test?
An event when denotes a particular task or activity is frequently shown as a round circle and called ?

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