An Introduction to univariate financial time series analysis 1 Introduction: what is a time-series? Time-series is a sequence {x1‚ x2‚ ...‚ xT } or {xt} ‚ t = 1‚ ...‚ T‚ where t is an index denoting the period in time in which x occurs. We shall treat xt as a random variable; hence‚ a time-series is a sequence of random variables ordered in time. Such a sequence is known as a stochastic process. The probability structure of a sequence of random variables is determined by the joint distribution
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Abstract This Paper examines and compares various forecasting techniques used for qualitative and quantitative business forecasting and their use in Firstlogic Inc.‚ to forecast the demand under conditions of uncertainty. Time series and Delphi forecasting methods are considered for this research to evaluate their ability to make effective decisions regarding the future. Business Forecasting Business forecasting is the process of studying historical performance for the purpose of using the knowledge
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VIRTUAL CONTENT ACADEMY (UVC) CPA PAPER 5 Index numbers By the end of topic‚ participants should be able to; 1. Appreciate the usefulness of index numbers in monitoring changes over time 1. Calculate simple indices 2. Determine simple aggregate price indices 3. Use laspeyre’s and Paashe’s price indices to determine weighted indices. What is an index number? An index number is a statistical measure designed to show/ monitor changes over a period of time in the price‚ quantity or value of an
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cycle times. Now the manufacturers put pressures on their suppliers. One way to ensure quick turnaround is by holding inventory‚ but inventory costs can easily become prohibitive. A wiser approach is to make your production agile‚ able to adapt to changing customer demands. This can only be done by JUST IN TIME (JIT) philosophy. Taiichi Ohno‚ a former shop manager and eventually vice president of Toyota Motor Company‚ is the individual credited most for the with the development of just-in-time. It
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The art of using time aright is so to live that we may in our short life do as much g6od work as we can‚ and neglect no opportunity of improving ourselves intellectually and morally. In this way we may expect to be happy ourselves and make others happy. The rules to be laid down for the proper use of time can best be expressed negatively. They take the form of warnings against the various ways in which we are tempted to waste our time. One of the most important of these rules is that we should avoid
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InvUnit 8 Overview Inventories - Part 1 This unit covers Chapter 6 which includes an overview of the controls needed for inventories‚ explanation of the three inventory cost flow assumptions (FIFO‚ LIFO and Average Cost methods) and using these inventory costing methods under a perpetual inventory system Chapter 6: "Inventories" Chapter 6: "Inventories" describes how companies maintain control over their inventories and account for the inventory costs as inventories are purchased and sold.
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Objective The objective of this experiment is to understand reflection and refraction and how they vary with different matters. At the end of this experiment‚ you will be able to: Determine index of refraction of various solutions Recognize the passage of refracted beams though different medium Understand the concept of Snell’s Law Understand how the speed of electromagnetic waves in different matters are related Determine the critical angle for total internal reflection Materials 550
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INDEX NUMBER Introduction Sebuah index menunjukkan perubahan relatif yang terjadi pada sebuah nilai dari satu periode ke periode yang lain. Kegunaan index‚ misalnya pada Consumer Price Index‚ adalah mengukur perubahan harga pada suatu kelompok besar dari barang-barang yang dibeli konsumen. Simple Index Numbers Angka index adalah suatu angka yang menunjukkan perubahan relatif pada harga‚ jumlah‚ atau nilai dibandingkan dengan suatu base period. Jika angka index yang digunakan untuk mengukur
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The refractive index Aim: The aim of this experiment is to find the refractive index of a glass prism. In this experiment‚ the independent variable is the angle of incidence‚ and the dependent variable is the angle of refraction. Theory: Snell’s law relates the angle of incidence and refraction to the ratio of the velocity of the wave in the different media. The formula for Snell’s law is the following: Sin isinr = v1v2 = n Where i is the angle of incidence‚ r is the angle of refraction
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First two lectures about big data. So why this surge? Isn’t about data at all Systems being able to process data Tools exploit and derive valuable nuggets NOT NEW: Walmart Wallstreet decades Why not out? Competition Teradata 20 years‚ contest MR patent Digital exhaust incr Know your Stats‚ gaga tweet sentiment analysis Correlation causation 2 Old: Centralized systems (data came from humans) Sun hardware Oracle software Moore’s law -> data grew. Data exhausts growing larger. Can’t
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