Question: The production planning period for mobile boards

> Daniel Glaser, chairman of the College of San Antonio’s business department, needs to assign professors to courses next semester. As a criterion for judging who should teach each course, Professor Glaser reviews the past 2 yearsâ&

> Tigers Sports Club has to select four separate coed doubles teams to participate in an interclub table tennis tournament. The preselection results in the selection of a group of four men—Raul, Jack, Gray, and Ajay—and

> The Baton Rouge Police Department has five detective squads available for assignment to five open crime cases. The chief of detectives, Jose Noguera, wishes to assign the squads so that the total time to conclude the cases is minimized. The average numbe

> Jamison Day Consultants has been entrusted with the task of evaluating a business plan that has been divided into four sections—marketing, finance, operations, and human resources. Chris, Steve, Juana, and Rebecca form the evaluation te

> A sales manager for a large construction equipment company has offices in four Saudi Arabia cities. As part of the monthly assignment, the manager wants a salesman from each office to fly and meet buyers in four other cities. The table below shows the co

> The marketing manager of a pharmaceutical company in Saudi Arabia has four salesmen that can serve four different sales regions. Considering the capabilities of the salesmen, their knowledge of the different medical providers, and the nature of regions,

> When President Bob Collins began his career at Wheeled Coach, the world’s largest manufacturer of ambulances, there were only a handful of employees. Now the firm’s Florida plant has a workforce of 350. The physical plant has also expanded, with offices,

> Given the following demand for waiters and waitresses at S. Ghosh Bar and Grill, determine the minimum wait staff needed with a policy of 2 consecutive days off.

> Four employees are to be assigned to four different jobs. The time per job per employee in minutes is given in the table below. Find the optimal assignment of employees to jobs to minimize the total completion time.

> The table below shows the weekly demand for security officers at a small mall in Kuwait. Determine the minimum number of security officers needed with 2 consecutive days off.

> Drew Rosen Automation Company estimates the data entry and verifying times for four jobs as follows: In what order should the jobs be done if the company has one operator for each job? Illustrate the time-phased flow of this job sequence graphically.

> At the campus copy shop, six jobs have arrived in the order shown (A, B, C, D, E, and F) at the beginning of the day (today, which is a workday). All of the jobs are due at various times today. Your task is to evaluate four common sequencing rules. a) Se

> Courtney is a programmer receiving requests each week to analyze a large database. Five jobs were on her desk Monday morning, and she must decide in what order to write the code. Assume that all jobs arrived today (day 1 and hour 1) in the order shown be

> Kamauf Custom Glass, Inc., manufactures custom windows primarily for homes and churches. Small repair jobs may take a few hours, but larger jobs may take hundreds of hours. How to schedule the jobs is a continuing issue? The scheduler has decided to see

> The following jobs are waiting to be processed at a small machine center: All dates are specified as manufacturing planning calendar days. Assume that all jobs arrived on day 210 (yesterday) in the order shown but are not scheduled to begin until day 211

> Six jobs are to be processed through a two-step operation. The first operation involves sanding, and the second involves painting. Processing times are as follows: Determine a sequence that will minimize the total completion time for these jobs. Illustra

> The following set of seven jobs is to be processed through two work centers at George Heinrich’s printing company. The sequence is first printing, then binding. Processing time at each of the work centers is shown in the following table

> When Orlando’s Arnold Palmer Hospital began plans to create a new 273-bed, 11-story hospital across the street from its existing facility, which was bursting at the seams in terms of capacity, a massive planning process began. The $100

> The following jobs are waiting to be processed at Jeremy LaMontagne’s machine center. Today is day 250. Using the critical ratio scheduling rule, in what sequence would the jobs be processed?

> Sunny Park Tailors has been asked to make three different types of wedding suits for separate customers. The following table highlights the time taken in hours for (1) cutting and sewing and (2) delivery of each of the suits. Which schedule finishes soon

> First Printing and Copy Center has four more jobs to be scheduled, in addition to those shown in Example 3 in the chapter. Production scheduling personnel are reviewing the Gantt chart at the end of day 4. ◆ Job D was scheduled to begin early on day 2 an

> The following jobs are waiting to be processed at Julie Morel’s machine center: In what sequence would the jobs be ranked according to the following rules: (a) FCFS, (b) EDD, (c) SPT, and (d) LPT? All dates are according to shop calenda

> The following jobs are waiting to be processed at Rick Solano’s machine center. Solano’s machine center has a relatively long backlog and sets a fresh schedule every 2 weeks, which does not disturb earlier schedules. B

> An Alabama lumberyard has four jobs on order, as shown in the following table. Today is day 205 on the yard’s schedule. In what sequence would the jobs be ranked according to the following decision rules: a) FCFS b) SPT c) LPT d) EDD e)

> The following five overhaul jobs are waiting to be processed at Avianic’s Engine Repair Inc. These jobs were logged as they arrived. All dates are specified as planning calendar days. Assume that all jobs arrived on day 180; today&acirc

> The following jobs are waiting to be processed at the same machine center. Jobs are logged as they arrive: In what sequence would the jobs be ranked according to the following decision rules: (a) FCFS, (b) EDD, (c) SPT, and (d) LPT? All dates are specifi

> The Doan Modianos Manufacturing Company is putting out seven new electronic components. Each of Modianos’ eight plants have the capacity to add one more product to its current line of electronic parts. The unit manufacturing costs for p

> Jerry Wei, the hospital administrator at St. Charles General, must appoint head nurses to four newly established departments: urology, cardiology, orthopedics, and obstetrics. In anticipation of this staffing problem, he has hired four nurses, considered

> Henry Coupe, the manager of a metropolitan branch office of the state department of motor vehicles, attempted to analyse the driver’s license-renewal operations. He had to perform several steps. After examining the license-renewal proce

> Ravi Behara, the managing partner at a large law firm in Virginia, must assign three clients to three attorneys. Cost data are presented in the following table: Use the assignment algorithm to solve this problem.

> Dennis Geyer’s company wishes to assign a set of jobs to a set of machines. The following table provides data as to the cost of each job when performed on a specific machine. a) Determine the assignment of jobs to machines that will min

> Lifang Wu owns an automated machine shop that makes precision auto parts. He has just compiled an input–output report for the grinding work center. Complete this report and analyse the results.

> Ron Satterfield’s excavation company uses both Gantt scheduling charts and Gantt load charts. a) Today, which is the end of day 7, Ron is reviewing the Gantt chart depicting these schedules: ◆ Job #151 was scheduled to begin on day 3 and to take 6 days.

> Keebock, a maker of outstanding running shoes, keeps the soles of its size 13 running shoes in inventory for one period at a cost of $.25 per unit. The setup costs are $50. Beginning inventory is zero, and lead time is 1 week. Shown here are the net requ

> Green Toys, a toy manufacturer in Cairo, Egypt, has the following master production plan: Lead time = 1 week; setup costs = E£2,000; holding cost = E£5 per unit per week; Stock-out cost = E£10 per unit per week. Dev

> You need to schedule 10 units of product Alpha for delivery in 6 weeks. Three units of D and 2 units of F are required for each Alpha. The lead time for Alpha is 1 week. Lead time for D is 1 week, and lead time for F is 2 weeks. a) Construct a product st

> Using the data in Problem 14.18, develop net material requirement plans for the toy and Item A. Data from Problem 14.18: A toy manufacturer has an outstanding order of 1,000 units for one of its toys in week 7. The table below provides information about

> A toy manufacturer has an outstanding order of 1,000 units for one of its toys in week 7. The table below provides information about the components, on-hand inventory, and lead time. Subscripts indicate quantity required for each parent. Assume lot-for-l

> Your stockroom manager, Mehmet Altag, arrived at your desk just after you had completed the net requirements plan for product A (use data in Figure 14.14 and Problem 14.15), exclaiming that the cycle counter should be fired. It seems that the cycle count

> Some people would say that Oliver Munday, Hard Rock’s vice president for cafe development, has the best job in the world. Travel the world to pick a country for Hard Rock’s next cafe, select a city, and find the ideal

> A motherboard manufacturer in China has received the following demand estimates for the next 6 months: a) The firm has estimated the carrying costs to be 10 Yuan per unit per month, stock-out costs to be 40 Yuan per unit, regular production costs to be 1

> You manage a consulting firm down the street from Consuelo Chua, Inc., and to get your foot in the door, you have told Ms. Chua (see Problem 13.7) that you can do a better job at aggregate planning than her current staff. She said, “Fin

> The exclusive Swink Golf Driving Range has had a standard price of $15 per hour. The facility has 36 golfing stations, with average usage of 50%, 10 hours a day, 7 days a week. Morgan Swink, the owner, would like to enhance revenue. He proposes new prici

> The James Lawson Chemical Supply Company manufactures and packages expensive vials of mercury. Given the following demand, supply, cost, and inventory data, allocate production capacity to meet demand at minimum cost using the transportation method. A co

> Maple Leaf Foundary, owned by Ahmet Satir, produces cast-iron ingots according to a 3-month capacity plan. The cost of labour averages $100 per regular shift hour and $140 per overtime (O.T.) hour. Inventory carrying cost is thought to be $4 per labour-h

> Consider the following aggregate planning problem for one quarter: Assume that there is no initial inventory and a forecasted demand of 1,250 units in each of the 3 months. Carrying cost is $1 per unit per month. Solve this aggregate planning problem for

> Develop two other plans for the Mexican roofing manufacturer described Solved Problem 13.1. a) For Plan 5, use constant workforce of eight workers for the first 3 months and ten workers for the last 3 months. Use subcontracting to meet the remainder of d

> The manufacturer of outdoor paints at Jebel Ali, Dubai, has collected the following information regarding the capacities (in units) and demand forecast for the next 9 months. Cost data are as follows: a) Develop a chase plan to meet the monthly demand us

> The production planning period for knobs at Al-Arabi Factory, Egypt, is 6 months. Cost data is as follows: For each of the next 6 months, capacity and demand data for knobs are as follows: Develop a production plan that minimizes costs using the transpor

> From its first Red Lobster in 1968, the chain has grown to 705 locations, with over $2.6 billion in U.S. sales annually. The casual dining market may be crowded, with competitors such as Chili’s, Ruby Tuesday, Applebeeâ€&#153

> Using the data in Problem 13.9, prepare the following two plans. Compare Plans C and D with Plans A and B and make a recommendation. ◆ Plan C – A chase plan. Assume the current workforce at 20 workers and productivity

> The table below provides information about the demand forecast and the number of working days for a tools manufacturing factory in Egypt. Construct a graph for the daily demand and the average daily demand forecast.

> The small boatyard White Kayaks built 156 epoxy kayaks last year. Each of these requires 12 kg of epoxy, purchased in 6-kg barrels at $170 each, with a freight cost of $18 per shipment plus $1/kg. The annual carrying cost is estimated to 20% of the value

> If D = 8,000 per month, S = $45 per order, and H = $2 per unit per month, a) What is the economic order quantity? b) How does your answer change if the holding cost doubles? c) What if the holding cost drops in half?

> William Beville’s computer training school, in Richmond, stocks workbooks with the following characteristics: Demand D = 19,500 units/year Ordering cost S = $25/order Holding cost H = $4/unit/year a) Calculate the EOQ for the workbooks. b) What are the

> Lynn Fish opened a new beauty-products retail store. There are numerous items in inventory, and Lynn knows that there are costs associated with inventory. However, because her time is limited, she cannot carefully evaluate the inventory policy for all pr

> The company organizing the famous rapper Sean Paul’s concert in Dubai has decided to print shirts to be sold at the event. The company has estimated that 20,000 attendees will attend the concert and, on an average, 40% of the attendees usually buy shirts

> Henrique Correa’s bakery prepares all its cakes between 4 a.m. and 6 a.m. so they will be fresh when customers arrive. Day-old cakes are virtually always sold, but at a 50% discount off the regular $10 price. The cost of baking a cake is $6, and demand i

> Beqala.com is an online grocery store that sells large fresh shrimps to customers in the area of Cairo, Egypt. The cost per kilo of shrimp is E£150 and it is sold at E£280 per kilo. The remaining shrimps at the end of the day are sold to a local restaura

> Demand during lead time for one brand of TV is normally distributed with a mean of 36 TVs and a standard deviation of 15 TVs. What safety stock should be carried for Dennis Yu’s Appliance Outlet to provide a 90% service level? What is the appropriate reo

> In October 2018, the top management of Southern Recreational Vehicle Company of St. Louis, Missouri, announced its plans to relocate its manufacturing and assembly operations to a new plant in Ridgecrest, Mississippi. The firm, a major producer of pickup

> Barbara Flynn’s company has compiled the following data on a small set of products: Perform an ABC analysis on her data.

> The distributor of Sumitomo Tires in Egypt estimates the annual demand of tires for next year to be normally distributed with a mean of 100,000 tires and a standard deviation of 3,000 tires. The ordering cost is estimated to be E£ 20,000 per order and th

> Gainesville Cigar stocks Cuban cigars that have variable lead times because of the difficulty in importing the product: lead time is normally distributed with an average of 6 weeks and a standard deviation of 2 weeks. Demand is also a variable and normal

> Metro hypermarket in Kuwait supplies juice boxes from a manufacturer in Saudi Arabia. Daily demand is almost constant at 100 boxes per day. The lead time for boxes delivery is normally distributed with a mean of 5 days and a standard deviation of 2 days.

> Chicago’s Hard Rock Hotel distributes a mean of 1,000 bath towels per day to guests at the pool and in their rooms. This demand is normally distributed with a standard deviation of 100 towels per day, based on occupancy. The laundry firm that has the lin

> Mr. Beautiful, an organization that sells weight training sets, has an ordering cost of $40 for the BB-1 set. (BB-1 stands for Body Beautiful Number 1.) The carrying cost for BB-1 is $5 per set per year. To meet demand, Mr. Beautiful orders large quantit

> A local hypermarket in Kuwait supplies juice boxes from a manufacturer in Saudi Arabia. The reorder point, without safety stock, is 800 boxes. The carrying cost is KWD 20 (Kuwaiti Dinar) per box per year, and the ordering cost is KWD 50 per box per year.

> Authentic Thai rattan chairs (shown in the photo) are delivered to Gary Schwartz’s chain of retail stores, called The Kathmandu Shop, once a year. The reorder point, without safety stock, is 200 chairs. Carrying cost is $30 per unit per

> Based on available information, lead time demand for PC jump drives averages 50 units (normally distributed), with a standard deviation of 5 drives. Management wants a 97% service level. a) What value of Z should be applied? b) How many drives should be

> Barbara Flynn is in charge of maintaining hospital supplies at General Hospital. During the past year, the mean lead time demand for bandage BX-5 was 60 (and was normally distributed). Furthermore, the standard deviation for BX-5 was 7. Ms. Flynn would l

> Since opening day, Arnold Palmer Hospital has experienced an explosive growth in demand for its services. One of only six hospitals in the U.S. to specialize in health care for women and children, Arnold Palmer Hospital has cared for more than 1,500,000

> In its 48 years of existence, Hard Rock has grown from a modest London pub to a global power managing 163 restaurants, 23 hotels/ casinos, and live music venues. This puts Hard Rock firmly in the service industry—a sector that employs over 75% of the peo

> Huehn-Brown Products in St. Petersburg offers the following discount schedule for its 4-by-8-foot sheets of quality plywood. Home Sweet Home Company orders plywood from Huehn Brown. Home Sweet Home has an ordering cost of $45. Carrying cost is 20%, and a

> The South African company AFROS sells safety equipment from their central warehouse in Johannesburg. AFROS applies an annual counting of the inventories at approximately 55,000 articles. The supply manager is not satisfied with the record accuracy and ha

> Happy Pet, Inc., is a large pet store located in Long Beach Mall. Although the store specializes in dogs, it also sells fish, turtle, and bird supplies. The Ever Last Leader, a leather lead for dogs, costs Happy Pet $7 each. There is an annual demand for

> Given the following data on a hardware item stocked by Andreas Wieland’s paint store in Copenhagen, should the quantity discount be taken? • D = 2,000 units; S = $10; H = $1; P = $1 • Discount price = $.75 • Quantity needed to qualify for discount = 2,00

> Zhong Factory manufactures different types of computer motherboards in batches. The demand for one of its motherboards is 200 units/day, while Zhong has a capacity of up to 1,000 motherboards/day. The factory operates 250 days per year. The setup cost is

> Al-Tawheed Discount Store sells a certain type of office chair for E£400. The annual holding cost is E£40 per unit per year, annual demand is 900 chairs, and the order cost is E£800 per order. The lead time is 14 days. The store is open 360 days per year

> Rick Jerz is attempting to perform an inventory analysis on one of his most popular products. Annual demand for this product is 5,000 units; carrying cost is $50 per unit per year; order costs for his company typically run nearly $30 per order; and lead

> It takes approximately 2 weeks (14 days) for an order of steel bolts to arrive once the order has been placed. The demand for bolts is fairly constant; on the average, the manager, Michelle Wu, has observed that the hardware store sells 500 of these bolt

> Victor Pimentel uses 1,500 units per year of a certain subassembly that has an annual holding cost of $45 per unit. Each order placed costs Victor $150. He operates 300 days per year and has found that an order must be placed with his supplier 6 working

> If the economic order quantity = 300, annual demand = 8,000 units, and order costs = $45 per order, what is the holding cost for P. S. Ravi Metalworks?

> The Arnold Palmer Hospital (APH) in Orlando, Florida, is one of the busiest and most respected hospitals for the medical treatment of children and women in the U.S. Since its opening on golfing legend Arnold Palmer’s birthday September 10, 1989, more tha

> If D = 1,000 per year, S = $62.50 per order, and H = $.50 per unit per year, what is the economic order quantity for purchasing manager Soomin Park?

> Emarpy Appliance is a company that produces all kinds of major appliances. Bud Banis, the president of Emarpy, is concerned about the production policy for the company’s best-selling refrigerator. The annual demand has been about 8,000 units each year, a

> Jean-Marie Bourjolly’s restaurant has the following inventory items that it orders on a weekly basis: a) Which is the most expensive item, using annual dollar volume? b) Which are C items? c) What is the annual dollar volume for all 20

> The oar maker Collars produces high-quality oars shipped all over the world. The oars are equipped with bronze oarlocks when sold to customers. Those oarlocks are purchased from an external supplier. To simplify the administrative process and at the same

> Emery Pharmaceutical uses an unstable chemical compound that must be kept in an environment where both temperature and humidity can be controlled. Emery uses 800 pounds per month of the chemical, estimates the holding cost to be 50% of the purchase price

> Chris Sandvig Irrigation, Inc., has summarized the price list from four potential suppliers of an underground control valve. See the accompanying table on the next page. Annual usage is 2,400 valves; order cost is $10 per order; and annual inventory hold

> M. P. VanOyen Manufacturing has gone out on bid for a regulator component. Expected demand is 700 units per month. The item can be purchased from either Allen Manufacturing or Baker Manufacturing. Their price lists are shown in the table. Ordering cost i

> Rocky Mountain Tire Centre sells 20,000 go-cart tires per year. The ordering cost for each order is $40, and the holding cost is 20% of the purchase price of the tires per year. The purchase price is $20 per tire if fewer than 500 tires are ordered, $18

> The catering manager of La Vista Hotel, Lisa Ferguson, is disturbed by the amount of silverware she is losing every week. Last Friday night, when her crew tried to set up for a banquet for 500 people, they did not have enough knives. She decides she need

> Meena Distributors has an annual demand for an airport metal detector of 1,400 units. The cost of a typical detector to Meena is $400. Carrying cost is estimated to be 20% of the unit cost, and the ordering cost is $25 per order. If Purushottama Meena, t

> Alaska Airlines is unique among the nine major U.S. carriers not only for its extensive flight coverage of remote towns throughout Alaska (it also covers the U.S., Hawaii, and Mexico from its primary hub in Seattle). It is also one of the smallest indepe

> Bell Computers purchases integrated chips at $350 per chip. The holding cost is $35 per unit per year, the ordering cost is $120 per order, and sales are steady, at 400 per month. The company’s supplier, Rich Blue Chip Manufacturing, In

> Union Furniture is a famous furniture store in Dubai. The company orders one of its bedroom models from Malaysia. The yearly demand for the bedroom is 200 units. The selling price is AED 5,000 per unit, the holding cost per unit is estimated at 25% of th

> Arthur Meiners is the production manager of WheelRite, a small producer of metal parts. Wheel Rite supplies CalTex, a larger assembly company, with 10,000 wheel bearings each year. This order has been stable for some time. Setup cost for Wheel-Rite is $4

> In this chapter, we have discussed a number of location decisions. Consider another: United Airlines announced its competition to select a town for a new billion-dollar aircraft-repair base. The bidding for the prize of 7,500 jobs paying at least $25 per

> For the sake of efficiency and lower costs, Premium Standard Farms of Princeton, Missouri, has turned pig production into a standardized product-focused process. Slaughterhouses have done this for a hundred years—but after the animal was dead. Doing it w