3-month weighted moving average to smooth the time series. Use a weight of 0.4 for the most recent period‚ 0.4 for the next period back‚ and 0.2 for the third period back. Forecast the closing price for December 15‚ 1997. c. Use exponential smoothing with a smoothing constant of α = 0.35 to smooth the time series. Forecast the closing price for December 15‚ 1997. d. Which of the three methods do you prefer? Why? Q2: Hudson Marine has been an authorized dealer for C&D marine radios for the past
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Market Potential A market potential is an estimate of the maximum possible sales opportunities for a commodity or group of commodities open to all sellers in a particular market segment for a stated period under consideration Before going to the stage of establishing market potential‚ commodity grouping must be established in such a way that the individual commodities concerned are uniform with respect to the demand function. Since most products do not greatly differ from others‚ consumers
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Exam 3 Outline SCM 303 Chapter 12 Demand Planning: Forecasting and demand management Demand Planning- the combined process of forecasting and managing customer demands to create a planned pattern of demand that meets the firm’s operational and financial goals. Fluctuating customer demand cause operational inefficiencies‚ such as: Need for extra capacity resources‚ backlog‚ customer dissatisfaction‚ system buffering (safety stock‚ safety lead time‚ capacity cushions‚ etc.) 3 basics tactics
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Forecasts for groups of items tend to be less accurate than forecasts for individual items because forecasts for individual items don’t include as many influencing factors. (T/F) F The Delphi approach involves the use of a series of questionnaires to achieve a consensus forecast. (T/F) T In order to compute seasonal relatives‚ the trend of past data must be computed or known‚ which means that for brand-new products
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Assignment ’B’ Assignment ’C’ Production Planning and Control Assignment ’A’ (Marks: 10) 1. A small electronics company produces pocket calculators and records the demand monthly. The following demand data are for a representative calculator: November December January 45 57 60 Using 50 as the exponential smoothing forecast for November‚ and using 0.3 as the exponential smoothing coefficient‚ forecast February sales. 2. ACE Computers has the following expected production capacity and demand for minicomputers:
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[3] d) Plot the original data and the three forecasts on the same graph. Which forecast smoothes the data the most? Which forecast responds to change the best? [4] Problem 2 [4] Given the following data‚ use exponential smoothing (( = 0.3) to develop a demand forecast. Assume the forecast for the initial period is 5. |Period 1 2 3 4 5 6 | |Demand 7 9 5 9 13 8
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Title Some considerations about the Application of ogive analysis for quality control and spectral correction of eddy covariance fluxes Christof Ammann‚ Albrecht Neftel Content Content Motivation for spectral/ogive analysis: methodological flux measurement problems at the Swiss CarboEurope grassland site Some basics about ogives Application examples: High-frequency damping/correction Analysis for intermittency/stationarity of turbulence Conclusions Site region Measurement
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I MGMT 3100 Production and Operations Management MID-TERM EXAM – SPRING 2012 Name: This is a TAKE-HOME Exam. The exam consists of six questions on 2 pages. You are required to answer ALL the questions. Answer each question thoroughly and show all your calculations. Give clear explanations for your answers where necessary. Completed exams are due on Thursday‚ March 4th by Midnight. You may use regular e-mail or the drop-box to submit your completed exam. EACH STUDENT IS EXPECTED TO
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magnitude of FE (Weighted) Moving Averages The Exponential Smoothing Method; Linear Combination * Another special case of Weighted Moving Average * F t = F t-1 + α (X t-1 - F t-1 ) II. Aggregate Production Planning Production Planning strategies: Level‚ Chase‚ and Combination * Level: constant workforce & same amount of product in each time period of the plan * Chase: produce exactly what is needed to satisfy demand during each period
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INTRODUCTION TO OPERATIONS MANAGEMENT Spring 2012-ASSIGNMENT # 1 Name 1: --------------------------------------------------- ID # ------------------------------------------------ Name 2: --------------------------------------------------- ID # ------------------------------------------------ Question # 1 [15 Marks] Bob Richards‚ the production manager of Zychol Chemicals‚ is preparing his quarterly report‚ which is to include a productivity analysis for his department. One of the inputs
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