Solve the problem using LP Model whether excel or graphical solution
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Solve the problem using LP Model whether excel or graphical solution
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- What are the two main approaches to scheduling calving in Australian dairy production systems, and where are they dominant in the Australian dairy industry? What is the link between these calving systems, the milk marketing systems where each calving system is dominant, and the feed base needed to support each system?Courtney Kamauf schedules production of a popularRustic Coffee Table at Kamauf Enterprises, Inc. The table requires a top, four legs, 1 8 gallon of stain, 1 16 gallon of glue, 2 short braces betweenthe legs and 2 long braces between the legs, and a brass cap that goeson the bottom of each leg. She has 100 gallons of glue in inventory,but none of the other components. All items except the brass caps, stain, and glue are ordered on a lot-for-lot basis. The caps are pur-chased in quantities of 1,000, stain and glue by the gallon. Lead time is 1 day for each item. Schedule the order releases necessary to pro-duce 640 coffee tables on days 5 and 6, and 128 on days 7 and 8.Courtney Kamauf schedules production of a popular Rustic Coffee Table at Kamauf Enterprises, Inc. The tablerequires a top, four legs, 18 gallon of stain, 116 gallon of glue, 2 shortbraces between the legs and 2 long braces between the legs, anda brass cap that goes on the bottom of each leg. She has 100 gallons of glue in inventory, but none of the other components. Allitems except the brass caps, stain, and glue are ordered on a lotfor-lot basis. The caps are purchased in quantities of 1,000, stainand glue by the gallon. Lead time is 1 day for each item. Schedulethe order releases necessary to produce 640 coffee tables on days5 and 6, and 128 on days 7 and 8.
- . David’s Sport Supplies is a store that sells sports equipmentand gear for teenagers and young adults. David’s is in the processof assigning the location of storage areas in its warehouse (Figure10-16) to minimize the number of trips made to retrieve neededitems. Given here in Table 10-14 are the departments that needto be located, the number of trips made per week for eachdepartment, and the area needed by each department.) The following data have been prepared for master production scheduling purposes in IKEA Australia: End product A: Beginning inventory of 60, Period forecast of 10, Lot size of 30, and 30 hours in lot size. End product B: Beginning inventory of 20, Period forecast of 5, Lot size of 20, and 20 hours in lot size. End product C: Beginning inventory of 30, Period forecast of 15, Lot size of 50, and 50 hours in lot size. Capacity: 38 hours/ week (i) Prepare the master production schedule for these items during the next four periods using the Ethan Allen master production scheduling method. (ii) Suppose that the master production schedule is frozen for the next three periods. What specific impact would the policy have on the IKEA's performance?Tim runs a softball league consisting of 16 teams. Each team plays approximately 20 games each summer. The biggest challenge for Tim in scheduling games has been the lack of available umpires. There are only 5 available umpires and they prefer to work consecutive nights and not more than 4 times per week. The typical requirements for umpires on a given week is shown below. A. How can you use workforce scheduling methods to schedule the umpires this comingsummer? B. Create an optimal schedule. Monday Tuesday Wednesday Thursday Friday Saturday Sunday Umps Required 4 4 2 2 4 4 1
- A college provides free tutoring services for its students 7 days a week, and the daily requirements for tutors are: Day M T W Th F S Su Requirements 5 4 7 3 6 3 4 Find the minimum number of tutors required if each tutor works 4 days a week and has 3 consecutive days off. Give preference to Saturday and Sunday off in case of a tie. (Hint: Look for group of 3 days with the lowest requirements). Specify the work schedule for each tutor. How much slack does your schedule generate for each day?A1 Credit provides credit information to its customersthroughout the country, 24 hours per day. Credit representativesanswer customer calls and provide information. Based on demandpatterns, the estimated number of representatives needed duringfour-hour time periods of each day are shown in the table. Employees work shift s of eight consecutive hours, and shift scan start at the beginning of any of the six periods shown inthe table. Assume this schedule will be repeated day aft er day,so that someone starting at 8 pm will contribute to the need forrepresentatives in the midnight–4 am time period. Th e supervisorhas been instructed to schedule employees so that all demandscan be met with a minimum possible number of employees.(a) Formulate an LP to minimize the number of representativesneeded.(b) Set up and solve the problem on a spreadsheet.(c) What is the optimal solution? Explain the rationale for thesolution.The demand for subassembly S is 90 units in week 7. Each unit of S requires 1 unit of T and 1 unit of U. Each unit of T requires 1 unit of V, 2 units of W, and 1 unit of X. Finally, each unit of U requires 1 unit of Y and 3 units of Z. One firm manufactures all items. It takes 2 weeks to make S, 1 week to make T, 2 weeks to make U, 2 weeks to make V, 3 weeks to make W, 1 week to make X, 2 weeks to make Y, and 1 week to make Z. Construct a net material requirements plan using on-hand inventory (enter your responses as whole numbers). Week Lead Time Item 1 2 3 4 5 6 7 (weeks) S Gross req nothing 2 On hand nothing Net req nothing Order receipt nothing Order release nothing T Gross req nothing 1 On hand…
- PT ABC produces disinfectants by mixing 2 chemical solutions for mixing in a machine to become a disinfectant solution (solution 1 and solution 2). Solution 1 is the first process which is carried out at workstation A for 0.5 minutes per solution later continued at workstation B for 0.2 minutes per solution. Then together solution 1 is mixed with solution 2 at workstation C for 0.8 minutes per solution. Workstations B and C are processed at workstation D for mixing together where the process is 5 minutes per solution until it becomes a disinfectant solution for sale to customers. a. Which workstations are the bottleneck? Explain with a picture of the workstation.b. What is the resulting time (throughput time) of the entire work system above?c. How much disinfectant solution can a company produce per hour?Refer again to Problems( Using the information in Problem(The demand for subassembly Sis 100 units in week 7.Each unit ofS requires 1 unit ofT and 2 units ofU. Each unit ofT requires I unit ofY, 2 units ofW, and 1 unit of X. Finally, eachunit of U requires 2 units of Y and 3 units of Z. One firm manufacturesall items. It takes 2 weeks to make S, 1 week to make T, 2 weeks to make U, 2 weeks to make Y, 3 weeks to make W,I week to make X, 2 weeks to make Y, and I week to make Z.a) Construct a product structure. Identify all levels, parents, and components.b) Prepare a time-phased product structure. ), construct agross material requirements plan. ). In addition to100 units of S, there is also a demand for 20 units of U, which isa component of S. The 20 units of U are…The demand for subassembly S is 110 units in week 7. Each unit of S requires 1 unit of T and 1 unit of U. Each unit of T requires 2 units of V, 2 units of W, and 2 units of X. Finally, each unit of U requires 1 unit of Y and 3 units of Z. One firm manufactures all items. It takes 2 weeks to make S, 2 weeks to make T, 2 weeks to make U, 1 week to make V, 2 weeks to make W, 2 weeks to make X, 2 weeks to make Y, and 2 weeks to make Z. Part 2 In addition to 110 units of S, there is also a demand for 30 units of U, which is a component of S. The 30 units of U are needed for maintenance purposes. These units are needed in week 6. Modify the gross material requirements plan to reflect this change (type 0 if the input box is not used). Week Lead Time Item 1 2 3 4 5 6 7 (weeks) S Gross req enter your response here enter your response here enter your response here enter your response here enter your response…