One of the characteristics of a single machine scheduling problem is that one machine is continuously available and is never kept idle when work is waiting. Select one: False True
Q: TRUE OR FALSE
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- AssumMe a customer orders a product online. SupPpose that the product is delivered later in the weEek. The time between the order placement and order delivery is known as: a. waitT time b. queue time c. cycle time d. process timeThe most significant factor affecting the difference between planned lead time and actual lead time for a specific order or batch in a shop is/are A. PriorityB. CapacityC. QueuesD. Component availabilityConsider doctor’s office: Physician’s have 30 min appointment slots starting at 8 AM to 6 PM Physicians spend 90 min (1.5 hrs.) each day on electronic medical records and 30 min on claims processing/questions related to medical insurance Typically, physicians have 75 percent appointments booked in advance, which leads to frequent cancellations. One out of 6 patients do not show up Even though appointment slots are 30 min, physicians spend on average 23 minutes with patient. Out of those 23 min, say 5 min could be done by nurse How much of physician’s work is value added
- In the PMT function, what is not true about the Num_periods argument? Group of answer choices It reflects a count of how many times payments will be made. It can contain references to fields. You must use constants for this argument. It is required.. For the MyMy1 queueing model, why do the following results hold? (Hint: Remember that 1ym is the meanservice time. Then think how long a typical arrival must wait in the system or in the queue.) a. W 5 (L 1 1)ym b. WQ 5 LymAn order for 100 of a product is processed on work centers A and B. The setup time onA is 50 minutes, and run time is 5 minutes per piece. The setup time on B is 60 minutes, and the run time is 5 minutes per piece. Wait time between the two operations is5 hours. The move time between A and B is 40 minutes. Wait time after operation B is5 hours, and the move time into stores is 3 hours. Queue at work center A is 25 hoursand at B is 35 hours. Calculate the total manufacturing lead time for the order.
- Answer the following true or false.a. The lead time is always less than the cycle timeConsider a business process in which each order that arrives is split into two jobs that are performed in parallel and are then rejoined before leaving the system. Assume no variance in inter-arrival times nor in process times for each task. Each station (depicted by a rectangle) contains one or more identical parallel servers (depicted by circles). Each server is independent of all others and can work on one job at at a time. Process times for individual servers at station A are 5 minutes. Servers at stations B and C have process times of 3 and 6 minutes respectively. Consider the system with one server at each of the stations A and B as before, and two identical parallel servers (each with a 6 minute process time) at station C. What is the system's capacity? What is the cycle time for each order through the entire process flow?You work for a small shipping company and warehouse. The owners have decided to update the software used for tracking, shipping, receiving, and inventory. Fifteen computers need to be updated. Hours of operation are 7 a.m. to 7 p.m. Monday through Saturday. Each computer must be updated manually by one of two trained employees, both of whom must be borrowed from other managers. The update procedure consumes 4 hours of the updater's time and generates an additional 1.5 hours of computer downtime. The work must be performed at a central loading station, away from the current location of the computer. How does the project portfolio management approach lead to enhanced strategic management for an organization and give an example how you woulduse this in a work place?
- Consider the problem of assigning multiple jdentical machines to an individual operator for the following situations: the loading and unloading time is 5 minutes, the independent operator activity time is 2 minutes, the independent machine activity time is 15 minutes. (a) How many machines should be assigned so that the operator will not be idle? What is the machine idle time in this case? (b) How many machines should be assigned so that machines will not be idle? What is the operator idle time in this case?A data storage system consists of 3 disk drives sharinga common queue. An average of 50 storage requests arriveper second. The average time required to service a requestis .03 second. Assuming that interarrival times and servicetimes are exponential, determine:a The probability that a given disk drive is busyb The probability that no disk drives are busyc The probability that a job will have to waitd The average number of jobs present in the storagesystemDiscuss the usefulness of Gantt charts in the scheduling process.