The Yum and Yee food truck near the business school serves customers during lunch hour by taking orders and making fresh batches of stir-fry. Customers have only one choice during the lunch hour so that Y&Y can maximize the number of customers served. Assume that each customer places just one lunch order, and all lunch orders are the same size: one unit of stir-fry. The stir-fry cooking works in this manner. First, one person cooks a batch of orders in a wok. The cooking depends upon the number of orders in the batch. The time to cook just one order is 3 minutes. For each additional order in the batch, it takes 0.5 minute more to cook. Thus, cooking two orders in a batch takes 3.5 minutes, cooking three orders takes 4 minutes, and so on. The other process is bagging and accepting payments (done by a separate person), which takes 0.80 minute per order. If Y&Y operates with batch sizes of 6 units, what is their process capacity (in orders per minute)? answer:_________orders per min

A machine cycle, or process loop, has these four parts. Which machine parts are most valued? Is replacing machine cycle components important? Does adding a second module solve the switching issue?

JCL Inc. is a major chip manufacturing firm that sells its products to computer manufacturers like Dell, Gateway, and others. In simplified terms, chip making at JCL Inc. involves three basic operations: depositing, patterning, and etching. Depositing: Using chemical vapor deposition (CVD) technology, an insulating material is deposited on the wafer surface, forming a thin layer of solid material on the chip. Patterning: Photolithography projects a microscopic circuit pattern on the wafer surface, which has a light-sensitive chemical like the emulsion on photographic film. It is repeated many times as each layer of the chip is built. Etching: Etching removes selected material from the chip surface to create the device structures.   The table below lists the required processing times and setup times at each of the steps. There is unlimited space for buffer inventory between these steps. Assume that the unit of production is a wafer, from which individual chips are cut at a later…

You are the manager of a clinical laboratory at a mid-size (200-bed) community hospital. Physicians and nurses are concerned about the turnaround time for laboratory tests ordered on early morning rounds. It appears that the samples are collected by the phlebotomy team on the 6:00 A.M. rounds. Physicians begin their patient rounds at 7:30 A.M. The physicians prefer to review the results of the laboratory tests ordered at the time they see the patient. They explain to you that they cannot make decisions with regards to further patient treatment or dischargewithout these results. Time is of the essence, as the hospital is cutting the budget, and it is important to decrease the patient length of stay. You are expected to look into this matter and make recommendations regarding the most efficient and effective way to address this problem. Question: 1. What is the best method of addressing this problem? (What styles is the best in managing the field Autocratic, democratic or laissez-faire.)

P1 P4 P2 P3 P5 P5 P5 P6 ... P1 has a production rate of 15 units/hour, P2 = 30 units/hour, P3 = 10 units per hour, P4 = 4 units/hour, P5 = 1 unit(s) per hour for each P5 and P6 = 6 units per hour. Operation P4 occurs seperately from and simultaneously with operations P1-P3. Operation P5 has three parallel and identical lines; therefore, each part only needs to go through one of the three lines. Consider the following two independent improvements: Improvement 1: Change station P4 into two connected stations (P4-1 and P4-2, connected in series) that have process times of 4 min/unit and 6 min/unit respectively. Improvement 2: Add two additional P5 stations to give you 5 parallel and identical lines. Improvement 2 increases capacity because it improves the bottleneck. The new bottleneck is station P4 since the original bottleneck has a process time of The new yearly capacity would be units per year. a) Which of the two improvements will provide the largest increase in capacity? What is the…

A small call center normally has four employees answering calls while open. On average, seven calls arrive every four minutes. Under normal operating conditions, each employee on average handles each call in 3.3 minutes. But today, one employee has the flu, so the center needs to operate with three employees during this time. The manager is nervous that it may be supply-constrained and so she directs her employees to hurry up their processing of calls today. What is the maximum average processing time for each call that they need to achieve today so that they have a stable queue? Note: Round your answer to 2 decimal places. Answer is complete but not entirely correct. Maximum average processing time 4,73 minutes

You are the manager of a clinical laboratory at a mid-size (200-bed) community hospital. Physicians and nurses are concerned about the turnaround time for laboratory tests ordered on early morning rounds. It appears that the samples are collected by the phlebotomy team on the 6:00 A.M. rounds. Physicians begin their patient rounds at 7:30 A.M. The physicians prefer to review the results of the laboratory tests ordered at the time they see the patient. They explain to you that they cannot make decisions with regards to further patient treatment or dischargewithout these results. Time is of the essence, as the hospital is cutting the budget, and it is important to decrease the patient length of stay. You are expected to look into this matter and make recommendations regarding the most efficient and effective way to address this problem. Question: 1. What decision-making tools would facilitate the analysis of the problem?