Since the flux is sinusoidal‚ r.m.s = (form factor*average e.m.f )/turns But form factor = (r.m.s value)/(average value) =1.11‚ Then r.m.s value of E.m.f = 1.11*4F*max.Flux = 4.44F*max.Flux‚ But max .flux = B_m*A r.m.s value of E.m .f in primary turn (Tp) = 4.44F*B_m*A*T_p NOTE: Bm is assumed to be 15000Wb/m. F = Frequency of A.C input/ Output F=50 Hz By introducing stacking factor (10-8) and Tp factor (0.9) then we have Number of turns per volt = N_T/V =7/A =7/3.75=1.87turns/volts
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Question 4 12 Question 5 14 References 15 Question 1 The sampling method that Mr. Kwok is using is Stratified Random Sampling Method. In this case study‚ Mr Kwok collected a random sample of 1000 flights and proportions of three routes in the sample. He divides them into different sub-groups such as satisfaction‚ refreshments and departure time and then selects proportionally to highlight specific subgroup within the population. The reasons why Mr Kwok used this sampling method are that the
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Lab Report 1. DB Query-Average time 1. For the G.711 run‚ estimate the DB response time. 0.25 2. For the G.729 run‚ estimate the DB response time. 0.25 3. For the G.723.1 run‚ estimate the DB response time. 0.25 2. Email Download Response Time- Average-Time 4. For the G.711 run‚ estimate the E-mail Download response time. 0.27 5. For the G.729 run‚ estimate the E-mail Download response time. 0.27 6. For the G.723.1 run‚ estimate the E-mail Download
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STUDENT PERFORMANCE DETERMINANTS IN A BUSINESS STATISTICS COURSE AT A LARGE URBAN INSTITUTION CIS 3300 November 30‚ 2012 INTRODUCTION This research paper discusses the effects of several different factors on a student’s success in a Business Statistics course. The different variables include areas related to the student’s academic factors as well as factors related to the student’s personal life. The academic related variables are: course of study‚ study hours per week‚ semester credit
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3 І. Methods of Lexicological Analysis 5 І.1. Contrastive Analysis 5 І.2. Statistical Methods of Analysis 7 І.3. Immediate Constituents Analysis 9 І.4. Distributional Analysis and Co-occurrence
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Qualification Unit number‚ title and credit value BTEC Level 3 Business Unit 4‚ Business Communication‚ 10 credits Learner name Assessor name Date unit issued Unit Deadline Date unit submitted by student Criteria reference To achieve the criteria the evidence must show that the learner is able to: Asst & Task no. Assessor initial & date when met PASS CRITERIA P1 explain different types of business information‚ their sources and purposes 1.1 P2 present complex internal business
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“ Statistics should be interpreted with caution as they can be misleading; they can both lie and tell the truth” Statistics are being used everyday to describe things in working and studying areas to show the productivity of the results they are hoping for. Therefore‚ people observe and notice alternative objects the world around. Throughout this fact‚ similarities and differences are such features that could endanger or turned out as advantages. This is called statistics. Explanations
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HUMA Specific Group of Indigenous People Prior to the arrival of Europeans‚ the indigenous people of Australia practiced their own traditions‚ had their own social and economic system. Indigenous people are the holders of unique languages‚ knowledge systems and beliefs. One indigenous group of people is the Aborigines. Aborigines are Australia’s indigenous people that migrated from somewhere in Asia 30‚000 years ago (Siasoco‚ 2007). The Aborigines’ strong spiritual beliefs tie them to
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differential backup can restore data on a computer with a full system backup by making copies of changed files since the last full system backup. This typically requires less storage space then a full system backup‚ but it’s not the most time efficient method. An incremental backup has the same concept as a differential backup‚ but has multiple steps‚ and requires an eventual full system backup. Finally is a selective backup which lets the user choose which files they would like to save‚ one of the disadvantages
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Notes on Introductory Statistics‚ I (P.P. Leung) Lecture notes are based on the following textbook: N.A. Weiss (2012)‚ Introductory Statistics‚ 9th edition‚ Pearson. Chapter 1 The Nature of Statistics 統計本質 §1.1 Two kinds of Statistics §1.4 Other Sampling Designs (其他抽樣方法) Chapter 1 The Nature of Statistics 統計本質 What is Statistics? 何謂統計? From Wikipedia‚ the free encyclopaedia: Statistics is a mathematical science pertaining to the collection‚ analysis‚ interpretation or
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