techniques can be used to analyze nominal level data to describe variables‚ examine relationships among variables‚ and determine differences between groups in distribution-free or non-normally distributed samples. The assumptions of nonparametric statistics are: (1) values from measurement of study variables need not be normally distributed in the sample‚ and (2) the level of measurement of study variables is usually nominal or ordinal. The mode is the only measure of central tendency that can be calculated
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Descriptive essay is a genre of essay which is used to describe a certain subject: a person‚ a thing‚ a place‚ a memory‚ experience‚ situation... A good descriptive essay should make the readers feel like they are present in the scene. As other essays‚ a descriptive essay usually has three parts: introduction‚ body paragraphs and conclusion. In the first part: introduction‚ the writer must have a sentence to introduce the subject with many kinds of techniques. Besides‚ there should be some more
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Theorem is a mathematical representation that helps one to calculate conditional probability. It relates inverse representation of the probabilities concerning two events. This theorem is named after the British Mathematician Thomas Bayes. It is represented by P(A‚ B)= P(A B) P(B) or P (A‚ B)=P(B A)P(A) So P(A|B)P(B) = P(B|A)P(A) The Law of Total Probability: P(B) = P(B/A).P(A) + P(B/A′) . P(A′) Total probability and multiplication rule: P(A/B) = P(B/A).P(A) (multiplication
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middle of a distribution of numbers‚ such that half the cases are higher and half lower than a value. What statistical measure should he use? A. mean B. median* C. mode D. standard deviation 3. A "codebook" is A. only used in existing statistics research. B. a document that tells the researcher where variables are located in the data file and what numbers go with variable attributes* C. the set of instructions that tell interviewers or experimenters how to treat respondents or subjects
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slight blemishes. The table below displays a manager’s probability assessment of the number of blemishes on one piece of new furniture. Number of Blemishes 0 1 2 3 4 5 Probability 0.34 0.25 0.19 0.11 0.07 0.04 1. On average‚ how many blemishes do we expect on one piece of new furniture? 2. What is the variance of blemishes on one piece of new furniture? (round to the nearest hundredth) QUESTION 22 The probability that a person catches a cold during the cold-and-flu season
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Types of Surveys QNT/561 In the following situations‚ decide whether you would use a personal interview‚ telephone survey‚ or self-administered questionnaire. Give your reasons. 1. A survey of the residents of a new subdivision on why they happened to select that area in which to live. You also wish to secure some information about what they like and do not like about life in the subdivision. A self-administered questionnaire is the survey I would choose
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The North Star Concert North Star.xls Best Guess‚ Worst Case‚ Best Case; and Continuous Uncertainties 3 Engine Services‚ Inc. Quick Start Guide to Crystal Ball Analyzing Uncertainty‚ Probability Distributions‚ and Simulation Learning Module: Crystal Ball Litigate Demo Engine Services.xls Language of Probability Distributions and Monte Carlo Simulation 4 Taurus Telecommunications Corporation: A New Prepaid Phone Card Learning Module: Tornado Sensitivity Taurus Telecommunications.xls Sensitivity
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Learning Team Deliverable Week 4 Learning Team Deliverable TA-4D) Recessions seem to show up every so often and create economic hardship. One might think that macroeconomic policymakers could tame the business cycle and implement policies that would end recessions. Are recessions a necessary fact of macroeconomic life? If not‚ what would it take to eliminate them? If they are unavoidable‚ what types of business can benefit from them? How would a recession affect your
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Probability Theory and Game of Chance Jingjing Xu April 24‚ 2012 I. INTRODUCTION Probability theory is the mathematical foundation of statistics‚ and it can be applied to many areas requiring large data analysis. Curiously‚ that the study on probability theory has its root in parlor games and gambling. In 17th century‚ dice gambling was a very common entertainment among the upper class. An
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08 ETHE AUSTRALIAN NATIONAL UNIVERSITY SCHOOL OF FINANCE AND APPLIED STATISTICS First Semester Examination 2010 QUANTITATIVE RESEARCH METHODS (STAT1008) Writing Period: 3 hours duration Study Period: 15 minutes duration Permitted Material: Non-programmable calculator‚ dictionary and 1 A4 page with notes on both sides Instructions to Candidates: • Attempt ALL questions. • Each question is of equal mark value. • Start your solution to each question on a new page. • To ensure full marks
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