Practical Management Science
6th Edition
ISBN: 9781337406659
Author: WINSTON, Wayne L.
Publisher: Cengage,
expand_more
expand_more
format_list_bulleted
Question
PROBLEM 2:The manager of a large manufacturer of industrial pumps prepare forecasts for a six- month period.
Month Demand
1 492 488
2 470 484
3 485 480
4 493 490
5 498 497
6 492 493
Required: Compute for the MAD, MSE, and MAPE.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution
Trending nowThis is a popular solution!
Step by stepSolved in 2 steps with 2 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, operations-management and related others by exploring similar questions and additional content below.Similar questions
- b3 need urgent in 15 minutesarrow_forwardforgiven product demand the time series trying equation is 53.3+2.1 X what is your forecast demand for period six?arrow_forwardplease help me with Question 3 thanks! Demand forecasts for 2021 are as follows: Month Demand Jan 140,000 Feb 78,900 Mar 85,800 Apr 89,100 May 123,600 Jun 136,350 Jul 120,450 Aug 106,950 Sep 121,950 Oct 135,750 Nov 87,000 Dec 93,300 Each worker can produce 900 products per month and is paid $1500 per month. Assume that at the end of last year, the company has 100 employees working on the production line. Hiring and layoff (firing) decisions are made at the beginning of each month, and associated costs are charged at that time. It costs the company $400 to hire and $800 to lay off a worker. The company incurs holding cost for the amount of ending inventory in each month, and incurs backorder cost at the end of each month for any unfilled orders. The company incurs $2 per month for holding one unit in inventory and $4 per unit backorder. 1 Prepare a level aggregate plan. Under this level aggregate plan, how…arrow_forward
- Demand at Nature Trails Ski Resort has a seasonal pattern.Demand is highest during the winter, as this is the peak ski season.However, there is some ski demand in the spring and even fallmonths. Th e summer months can also be busy as visitors oft encome for summer vacation to go hiking on the mountain trails.Th e owner of Nature Trails would like to make a forecast for eachseason of the next year. Total annual demand has been estimatedat 4000 visitors. Given the last two years of historical data, what isthe forecast for each season of the next year?arrow_forwardWeek 1 2 4 Forecast Method 1 0.90 1.05 0.97 1.22 Actual Demand 0.72 1.05 1.00 0.97 Week 1 2 3 4 Forecast Method 2 0.82 1.19 0.90 1.17 Actual Demand 0.72 1.05 1.00 0.97 0 The MAD for Method 1 = thousand gallons (round your response to three decimal places). The mean squared error (MSE) for Method 1 = thousand gallons (round your response to three decimal places). The MAD for Method 2 = thousand gallons (round your response to three decimal places). The mean squared error (MSE) for Method 2 = thousand gallons (round your response to three decimal places).arrow_forwardpart b)arrow_forward
- 7. Nowjuice, Inc., produces Shakewell fruit juice. A planner has developed an aggregate forecast for demand (in cases) for the next six months. Month May Jun Jul Forecast 4,000 4,800 5,600 Aug Sep 7,200 Oct 6,400 5,000 Use the following information to develop aggregate plans. Regular production cost Regular production capacity Overtime production cost Subcontracting cost Holding cost Beginning inventory $10 per case 5,000 cases $16 per case $20 per case $1 per case per month 0 Develop an aggregate plan using each of the following guidelines and compute the total cost for each plan. Which plan has the lowest total cost? a. Use level production. Supplement using overtime as needed. b. Use a combination of overtime (500 cases per period maximum), inventory, and subcontracting (500 cases per period maximum) to handle variations in demand. c. Use overtime up to 750 cases per period and inventory to handle variations in demand.arrow_forwardA store’s demand figures are given in the table. According to this, what is the linear regression forecast for Week 12?arrow_forwardInterpret the MAD of the most accurate among the forecasting models below. A. Naïve approach;B. 5-month SMA model;C. WMA model with weights 0.1, 0.3, and 0.6; orD. ES model with α = 0.5 and a forecast of 3,500 liters in the first month.arrow_forward
- The operations manager has compiled data on demand for the two most popular books from order records for the previous 14 months, as shown in the table below. Study the forecast figures for ‘JHS Science Textbook’ from the table and determine if a demand pattern is obvious, and hence prepare a monthly forecast for the next four months for this product. Briefly explain why you chose the particular method used for this forecast. Month JHS Science Textbook (cartons) SHS Math Textbook (cartons) 1 50 40 2 54 38 3 57 41 4 60 46 5 64 42 6 67 41 7 90* 41 8 76 47 9 79 42 10 82 43 11 85 42 12 87 49 13 92 43 14 96 44 *Unusual order due to flooding of a major distributor’s warehouse.arrow_forwardTime period Actual sales 1 18 2 22 If the forecasting value of period 3 is 19.6 using exponential smoothing, the smoothing constant is what?arrow_forwardAssume an initial starting Ft of 200 units, a trend (Tt ) of 8 units, an alpha of 0.30, and a delta of 0.40. If actual demand turned out to be 288, calculate the forecast including trend for the next period.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,Operations ManagementOperations ManagementISBN:9781259667473Author:William J StevensonPublisher:McGraw-Hill EducationOperations and Supply Chain Management (Mcgraw-hi...Operations ManagementISBN:9781259666100Author:F. Robert Jacobs, Richard B ChasePublisher:McGraw-Hill Education
- Purchasing and Supply Chain ManagementOperations ManagementISBN:9781285869681Author:Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. PattersonPublisher:Cengage LearningProduction and Operations Analysis, Seventh Editi...Operations ManagementISBN:9781478623069Author:Steven Nahmias, Tava Lennon OlsenPublisher:Waveland Press, Inc.
Practical Management Science
Operations Management
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:Cengage,
Operations Management
Operations Management
ISBN:9781259667473
Author:William J Stevenson
Publisher:McGraw-Hill Education
Operations and Supply Chain Management (Mcgraw-hi...
Operations Management
ISBN:9781259666100
Author:F. Robert Jacobs, Richard B Chase
Publisher:McGraw-Hill Education
Purchasing and Supply Chain Management
Operations Management
ISBN:9781285869681
Author:Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. Patterson
Publisher:Cengage Learning
Production and Operations Analysis, Seventh Editi...
Operations Management
ISBN:9781478623069
Author:Steven Nahmias, Tava Lennon Olsen
Publisher:Waveland Press, Inc.