...time for half of the sample of a radioisotope to decay is known as half-life. Radioactive decay is random process that simulates a first order rate process. The only "constant" in such a process is the time it takes for the activity to drop from any value to one-half that value. Materials: -Small pieces of candy marked on one side -Plastic/paper cup - Paper towel -Classmates Procedure: 1. Count your nuclei (candy). Write that number in the data table under the heading ‘’Number of Radioactive Nuclei.’’ In the column marked ‘’Prediction for Next Toss’’ write the number of radioactive nuclei you think you will have with your next toss. (Radioactive nuclei will be those candies with the marked side down.) 2. Place your ‘nuclei’ in a paper cup, cover and shake the cup. Pour the ‘nuclei’ onto the paper towel. Separate the ‘nuclei’ into two piles, one with the marked side up and the other with the marked side down. Count the number of ‘nuclei’ in each pile. On your data table, record the number of ‘radioactive nuclei’ candies with the marked side down. Predict how many radioactive ‘nuclei’ you will have after the next toss. 3. Return only the radioactive ‘nuclei’ to your paper cup. (You decide what to do with the ‘decayed nuclei’) 4. Continue this process until there are no radioactive ‘nuclei’ left. Add more rows to your data table, if needed. 5. Pool the class data by summing the number of radioactive nuclei of all the class 6. groups for each...
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...Students learn criteria for developing effective research questions, including the creation of appropriate sampling populations and instruments. Other topics include descriptive statistics, probability concepts, confidence intervals, sampling designs, data collection, and data analysis—including parametric and nonparametric tests of hypothesis and regression analysis. Policies Students/learners will be held responsible for understanding and adhering to all policies contained within the following document: University policies: You must be logged into the student website to view this document. University policies are subject to change. Be sure to read the policies at the beginning of each class. Policies may be slightly different depending on the modality in which you attend class. If you have recently changed modalities, read...
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... It examines the role of statistical analysis, statistical terminology, the appropriate use of statistical techniques and interpretation of statistical findings through applications and functions of statistical methods. Policies Faculty and students/learners will be held responsible for understanding and adhering to all policies contained within the following two documents: • University policies: You must be logged into the student website to view this document. • Instructor policies: This document is posted in the Course Materials forum. University policies are subject to change. Be sure to read the policies at the beginning of each class. Policies may be slightly different depending on the modality in which you attend class. If you have recently changed modalities, read the policies governing your current class modality. Course Materials Triola, M. F. (2010). Elementary statistics. (11th ed.). Boston, MA: Pearson. All electronic materials are available...
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...Sample Test Paper (MBA, MS Management Sciences) | | 1. All answers must be given on the text answer sheet in the manner indicated on the Sample Answer Sheet. 2. There will be no negative marking. 3. Do not write / answer beyond the specified time which will be controlled by the class supervisor. 4. Calculators of any kind are not allowed.There are five sections of Test Paper: - 1. Section 1 -- English 2. Section 2 -- Mathematics 3. Section 3 -- IQ 4. Section 4 -- General Knowledge 5. Section 5 -- EssayNOTE: 1. You will be required to answer all questions on the given answer sheet. Sample of Answer Sheet is given here. 2. You will be provided Aptitude Test Kit to work. You do not need to carry any thing for the test except your Admit Card. Aptitude Test Kit will include: - * Pencil * Pencil Cutter * Eraser * Scale * Question Paper * Answer Sheet | SECTION # 01 -- English | This section includes following areas: - 1. Language (5 Minutes, 15 Questions) 2. Grammar (10 Minutes, 10 Questions) 3. Comprehension (15 Minutes, 10 Questions) | Language | | 1- Synonyms a. Opposite b. Appropriate c. Confuse d. Same in the meaning | 2- Amplitude a. Largeness b. Short Fall c. Deficit d. Ingenuity | | | Grammar | Choose the answer that best expresses the meaning of original sentence: | 1. With the exception of Frank and I, every one in the class finished the assignment before the...
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...chemical tests were performed on 10 numbered unknown solids and the results of all tests were compared as a class to try and determine which groups had the same unknown solids based on similarities in properties. It was found that my given unknown solid #11 shared similar properties with the unknown solid #1. A side by side analysis of the reactivity test in which Hydrochloric acid (HCI), lead nitrate (Pb(NO3)2) and sodium hydroxide (NaOH) was added to three separate samples of the compounds unknown #1 and #11 aqueous solutions. The results for both unknowns were identical, leading to the conclusion that my unknown solid #11 was the same unknown solid as #1. Introduction When conducting research it is important to be comfortable communicating your results with other researchers so that they can be further analyzed and compared with the results of other research experiments. Another large part of conducting research is to be comfortable determining, describing and comparing chemical and physical properties of compounds. Many compounds can look very similar, but have drastically different chemical properties, so it is important to know which tests can be performed on a compound to help determine what it is, or what it is not. In this experiment 2 sets of six unknown solid compounds were put into small jars and labeled with the numbers 1-12, numbers 4, 6 and 8 were not used. Each lab group was given one unknown solid and told to determine the samples properties through various testing...
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... |Due |Points | |Objectives |Compute descriptive statistics for given data sets. | | | | |Apply probability concepts related to discrete and continuous probability. | | | |Readings |Read Ch. 3, 5, 6, & 7 of Statistical Techniques in Business & Economics. | | | | |Read materials on the student website | | | |Participation |Participate in class discussion....
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...Assignment MTH 233 Week 5 Individual Assignment: Individual Assignment MTH 233 Week 5 Learning Team Assignment: Hypothesis Testing and Regression Analysis Paper only MTH 233 Learning Team Assignment: Hypothesis Testing and Regression Analysis Presentation ----------------------------------------------- MTH 233 Learning Team Assignment Hypothesis Testing and Regression Analysis Presentation For more classes visit www.snaptutorial.com Resources: University Library and the Internet Select a research issue, problem, or opportunity facing a Learning Team member’s organization to examine using hypothesis testing and a regression analysis on the collected data. Write a 1,050- to 1,750-word paper describing a new hypothesis test using a different statistic (e.g., large sample size, small sample size, means and/or proportions, one- and two-tailed tests) to perform on that data. Formulate a new hypothesis statement and perform the five-step hypothesis test on the data. Describe the results of the tests. Interpret the results of the regression analysis, state the limitations of the analysis, and describe the significance of the results to the organization. Be sure to attach the results of the regression analysis created in Microsoft® Excel to your paper. Present the results to the class in a 10-minute PowerPoint® presentation ----------------------------------------------- MTH 233 Week 2 Individual Assignment Individual Assignment 1 For more classes...
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...CHAPTER III METHODOLOGY This chapter outlined the entire research plan. It described how the study was done, the data, instruments utilized, how samples were selected and the analysis of the data using statistical treatment. Research Design The researchers used the true experimental design. It further used Solomon’s Four Group design which involves two experimental groups and two controlled groups. One experimental group and one control group are administered the pretest and the other groups are not, thereby allowing the effects of the pretest measure and intervention to be segregated. In this study there were two groups who were studied: a group who studies alone and a group who studies with a group, this design is a combination of pretest and post test controlled group design, and the post test only controlled group design, in addition to the basic pretest/treat/posttest design three additional test, one without treatment, one without pretest, and one without both pretest and treatment were considered. For a reliable result several sets of four tests were applied and the means used. The various combinations of tested and untested groups with treatment and controlled groups allow the researchers to ensure that confounding variables and extraneous factors have not influenced the results. | |Pre-test |Treatment |Post test | |Experimental with pre-test |O1 |X |O2...
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...Energy Content of Foods Written by Chris Papadopoulos The energy content of foods is investigated. The energy released by a number of food samples and absorbed by water is determined using technology. Inferences about the energy content of foods with high fat content and foods with high carbohydrate content are then made. Hypothesis Foods, depending on their carbohydrate/fat composition, have different energy content that can be determined by measuring the heat release from their combustion. Primary Learning Outcomes At the end of this lesson, students will be able to: • Be familiarized with data collection using the Vernier LabPro and TI calculator • Be familiarized with the use of the Vernier LabPro temperature probe • Collect, graph, display and make inferences from data • Determine the amount of heat released by a substance given the specific heat capacity (Cp) of water, the mass (m) of the food sample and the change in temperature (∆t) Assessed GPS Characteristics of Science: Habits of Mind: SCSh2. Students will use standard safety practices for all classroom laboratory and field investigations. a. Follow correct procedures for use of scientific apparatus. b. Demonstrate appropriate techniques in all laboratory situations. SCSh3. Students will identify and investigate problems scientifically. a. Suggest reasonable hypotheses for identified problems. c. Collect, organize and record appropriate data. d. Graphically compare and analyze data points and/or...
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...Review and Evaluation on ‘Do Investment-Cash Flow Sensitivities Provide Useful Measures of Financing Constraints’ by Kaplan and Zingales (QJE,1997) The research paper written by Steven N. Kaplan and Luigi Zingales as titled above which was published in year 1997 is to test the relationship linking investment-cash flow with financial constraint. In their research, they found that firm with a low level of financial constraint have a tendency to have a high investment-cash flow sensitivity. However, the findings contradict with the other research paper especially the FHP, 1988 paper. They used the same sample used in research done by Fazzari, Hubbard, and Petersen (FHP, 1988). But they only took the firms from Class 1 in FHP research which is manufacturing firms and classified as low dividend firms with dividend payout ratio with value below 10%, where they believe to be firms with an abnormally high investment-cash flow sensitivity (Kaplan & Zingales, 1997). The reasons why Kaplan and Zingales chose Class 1 firms as their sample are because of the strong connection illustrated between the firm’s investment and cash flow, FHP argue Class 1 firms are financially constrained even the result indicates that the firms have significantly high sensitivity of investment-cash flow, and lastly because the sample size is considered manageable for a costly research design. They follow the same timeline which is from year 1970 to 1984. Research is conducted by first determining the demand...
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...implementation to create sustainable, competitive advantage for an organization. Other topics include environmental scanning, strategic analysis, corporate social responsibility, implementation and evaluation, and risk management. Policies Faculty and students/learners will be held responsible for understanding and adhering to all policies contained within the following two documents: • University policies: You must be logged into the student website to view this document. • Instructor policies: This document is posted in the Course Materials forum. University policies are subject to change. Be sure to read the policies at the beginning of each class. Policies may be slightly different depending on the modality in which you attend class. If you have recently changed modalities, read the policies governing your current class modality. Final Exam The final electronic exam is an individual and not a collaborative assignment. Students are expected to abide by the University’s Student Code of Conduct policy and refrain from receiving unauthorized assistance, collaborating, or inappropriate sharing of work as it relates to the electronic exam. Information used in...
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...Who are the Indian Middle Class? A Mixture Model of Class Membership Based on Durables Ownership1, 2 Sudeshna Maitra Department of Economics, York University 1038 Vari Hall 4700 Keele Street Toronto, ON M3J 1P3 Email: smaitra@econ.yorku.ca Phone: 416-736-2100 Ext. 77052 Fax: 416-736-5987 July 2007 PRELIMINARY DRAFT, PLEASE DO NOT QUOTE! I sincerely thank Barry Smith, whose insights have greatly benefited this research. All remaining errors in the paper are my own. 2 The research was undertaken while I was Research Fellow at The Conference Board, New York, and I am grateful to Bart van Ark, Ataman Ozyildirim and June Shelp for comments and support. 1 Who are the Indian Middle Class? A Mixture Model of Class Membership Based on Durables Ownership Sudeshna Maitra York University July, 2007 ABSTRACT The size and consumption habits of the Indian middle class have evoked considerable interest in the media in the past two decades. Yet the definition of the middle class has been nebulous at best. I propose the use of a mixture model of class membership to identify and estimate the size of the lower, middle and upper classes in urban India, based on their distinct durables ownership patterns. Estimates using NSS data (55th Round, 1999-00) suggest that the urban middle class in India constitutes approximately 62% of urban households (which implies about 17% of all households) with mean ownership of 3 durable goods (out of 12). I also estimate the probability that each...
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...Kiel Institute of World Economics Duesternbrooker Weg 120 24105 Kiel (Germany) Kiel Working Paper No. 1086 Markov or Not Markov – This Should Be a Question by Frank Bickenbach and Eckhardt Bode December 2001 The responsibility for the contents of the working papers rests with the author, not the Institute. Since working papers are of a preliminary nature, it may be useful to contact the author of a particular working paper about results or caveats before referring to, or quoting, a paper. Any comments on working papers should be sent directly to the author. Markov or Not Markov – This Should Be a Question Abstract: Although it is well known that Markov process theory, frequently applied in the literature on income convergence, imposes some very restrictive assumptions upon the data generating process, these assumptions have generally been taken for granted so far. The present paper proposes, resp. recalls chi-square tests of the Markov property, of spatial independence, and of homogeneity across time and space to assess the reliability of estimated Markov transition matrices. As an illustration we show that the evolution of the income distribution across the 48 coterminous U.S. states from 1929 to 2000 clearly has not followed a Markov process. Keywords: Convergence, Markov process, chi-square tests, U.S. regional growth JEL classification: C12, O40, R11 Frank Bickenbach Kiel Institute of World Economics 24100 Kiel, Germany Telephone:...
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...Colleges PROFESSOR MIKE P. McKEEVER CRITICAL CLASS LINKS – FALL SEMESTER 2012 ECON 1, 3 Units: Principles of Macroeconomics; CRN: 70719, 70721, 70722 Course Hours: Econ 1-003, CRN 70719 MWF 9:00 AM to 9:59 AM, ARTX 182 Econ 1-005 CRN 70721 MWF 10:00 AM to 10:59 AM, ARTX 182 Econ 1-006, CRN 70722 MWF 11:00 AM to 11:59 AM, ARTX 182 DEAR CCSF STUDENT: Welcome to my class in MACROeconomics This class is a gateway into understanding how the worlds of money and politics interact. We will discuss many events from the daily news – you will enjoy it more if you read part of a newspaper every day. I have been teaching these classes for many years and I am sure we will have a good experience learning together. I am always open to questions and to new ideas, so do not hesitate to ask a question or contribute an idea. My teaching philosophy is that I have high expectations of the work that students do. I plan to guide you on a step by step basis so that you will do professional quality work. While it is possible to fail the class, I will do all that I can to ensure that you succeed. Here is an important word about professional standards of conduct - Part of the education process is to show mutual respect between students and faculty; I will show you respect by being on time and prepared, you will show respect by being in your chair prepared to take notes at the class time. What I ask in return is that you complete...
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...GIST, Center for Development of Advanced Computing, Pune, India Abstract: With the advancement in technology, there is an increased use of pen-based touch screen devices and PDAs. These devices come with an alternative for the traditional alphanumeric or QWERTY keyboard which is input in the form of user’s handwriting. The handwriting is then converted into normal text form. However, these devices require prior training to be done by the user. There is a high demand for robust and accurate recognition systems in the practical applications of handwriting recognition. The real challenge lies with the selection of a classifier which gives accurate results in real-time, while making the system self-adaptive simultaneously. Thus, in this paper various classifiers have been studied so as to find the most appropriate classifier for anonline handwriting recognition system for handwriting in Hindi language that provides a way by which the touch screen device adapts itself to its user handwriting without prior training is studied. Keywords: Active-DTW, Markov Model, Self -adaptation, SVM, Writer adaptation 1. Introduction Hindi is the fourth most spoken language in the world [16]. Being the national language of India, it has several million speakers across the country owing to its vast population. A majority of the population prefer to read and write in their native language which poses a new challenge to the penetration of Information Technology. Moreover, the keyboard for Hindi...
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