DEPARTMENT OF MATHEMATICS NAME: Chen Haiwei Student Id: 42416302 FACULTY OF SCIENCE MATH123 S212 Mathematics 123 Tutorial Week 3 Tutorial Group: You must hand in this sheet at your tutorial class. Do not hand in your worked solutions‚ you should keep these for your own reference. MATH123 Mathematics 123 S212 2012 Tutorial Week 3 1. Simplify each of the following expressions‚ to obtain equivalent expressions‚ and reducing the complexity of denominators wherever possible. Show all your
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Averages Method: Moving average of order N is the arithmetic average for the most recent N observations Exponential smoothing method: It combines both demand and forecast. The Current forecast is the weighted average of the last forecast and the current demand 1.1.2 Trend based methods: Regression Analysis: fits straight line to a set of data Holt’s Method : type of double exponential smoothing. Allows for simultaneous smoothing on the series and on the trend 1.2 Qualitative methods:
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Eight Steps to Forecasting • Determine the use of the forecast □ What objective are we trying to obtain? • Select the items to be forecast • Determine the time horizon of the forecast □ Short time horizon – 1 to 30 days □ Medium time horizon – 1 to 12 months □ Long time horizon – more than 1 year • Select the forecasting model(s) |Description |Qualitative Approach |Quantitative Approach
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tables‚ charts‚ graphs‚ etc.‚ may be added to the five page narrative to enhance your discussion. See “Case Analysis and Presentation” for guidance 1. Investigate the potential to apply various time series forecasting approaches‚ including exponential smoothing. 2. Discuss the benefits and limitations of time series forecasting for this application. 3. Introduce the challenges involved in managing reusable inventories that spend most of their time in the possession of customers.
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RADIATION DETECTION IN VEGETABLE LEAVES: A COMPARATIVE CASE STUDY IN COASTAL AND HINTERLAND REGIONS OF AKWA IBOM STATE BY Godfrey T. Akpabio‚ Ime E. Essien And Bassey E. Bassey. Department of Physics‚ University of Uyo‚ Uyo. ABSTRACT Radioactive radiation level was detected for five samples of vegetable leaves namely: Water leaf‚ Fluted Pumpkin‚ Editan Lasientera africana and Afang Gnetum africanum. These vegetable leaves were collected from Uyo (interland region) and Ibeno
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sum is finite. Definition. A Fourier polynomial is an expression of the form [pic] which may rewritten as [pic] The constants a0‚ ai and bi‚ [pic]‚ are called the coefficients of Fn(x). The Fourier polynomials are [pic]-periodic functions. Using the trigonometric identities [pic] we can easily prove the integral formulas (1) for [pic]‚ we have [pic] (2) for m et n‚ we have [pic] (3) for [pic]‚ we have [pic]
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Exam 1 Review BIO 130: Introduction to Environmental Science Unit 1 Be able to define an environmental factor. There are two types (condition and resource). What is the difference between a condition and a resource? Be able to categorize particular environmental factors as conditions OR resources (for example‚ temperature is a condition and not a resource). Be able to rank from smallest to largest: ecosystem‚ landscape‚ biome‚ biosphere Be able to rank from smallest to largest (in terms
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************************* MIDTERM I ***************************** 1. Operations Management is attracting increasing attention due to the recent trends in the industrial world. Which of the following statements correctly represents this recent change? a. The percentage of the world’s output produced by the U.S. has been steadily increasing since 1960. b. Compared to the other industrial countries such as Italy and France‚ the U.S. has a higher rate of productivity growth since 1960
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Study Guide for Final Exam The final will be cumulative‚ although much of the test will focus somewhat more heavily on the material covered since the last midterm. There will be some questions that have been taken directly from the two earlier midterms. You’ll almost certainly recognize these questions; if you’ve reviewed the earlier exams with me in class (or in person) & know the answers to most or all of the questions‚ you’ll breeze through them. Read each question carefully‚ though‚ as
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encounters is the equation that models the change of a population as being proportional to the number of individuals in the population. In symbols‚ if P(t) represents the number of individuals in a population at time ‚ then the so called called exponential growth model is: Recall that the general solution of this differential equation is . Recall also that in order to get a particular solution‚ we must have some sort of experimental
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