Working Paper 05-47 Statistics and Econometrics Series 09 July 2005 Departamento de Estadística Universidad Carlos III de Madrid Calle Madrid‚ 126 28903 Getafe (Spain) Fax (34) 91 624-98-49 BAYESIAN INFERENCE FOR THE HALF-NORMAL AND HALF-T DISTRIBUTIONS M.P. Wiper‚ F.J. Girón‚ A. Pewsey* Abstract In this article we consider approaches to Bayesian inference for the half-normal and half-t distributions. We show that a generalized version of the normal- gamma distribution is conjugate to the
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Introduction Statistics is a set of tools used to organize and analyze data. Data must either be numeric in origin or transformed by researchers into numbers. For instance‚ statistics could be used to analyze percentage scores English students receive on a grammar test: the percentage scores ranging from 0 to 100 are already in numeric form. Statistics could also be used to analyze grades on an essay by assigning numeric values to the letter grades‚ e.g.‚ A=4‚ B=3‚ C=2‚ D=1‚ and F=0. Employing
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Statistics Real Life Example #2Article: http://america.aljazeera.com/articles/2014/10/21/us-ebola-airports.htmlMy article is covering the recent “Ebola Outbreak”. In this‚ people are direly afraid of catching the Ebola virus. They are even going as far as screening people in airports who come from‚ and travel to‚ places where Ebola is much more spread amongst the population (mostly in Africa‚ for now). The article quotes: “Some members of Congress have urged President Barack Obama to ban all travel
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Statistics Investigation Introduction A new drug was developed that was claimed to lower the cholesterol level in humans. A leading heart specialist was interested to know if the claim made by the company selling the drug was accurate. They enlisted the help of 50 patients. They agreed to take part in an experiment in which 25 patients would be randomly allocated to a group that would take the new drug and the other 25 would take an identical looking pill that was a placebo (a sugar pill that
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The American Express Card Marketing is fully integrated into our overall strategy. Our largest investor‚ Warren Buffett‚ is very focused on brand health and customer metrics. — Kenneth I. Chenault In April 2008‚ Jud Linville‚ president and chief executive officer of U.S. Consumer Services at American Express Company‚ was preparing for a meeting with Ken Chenault‚ American Express’s chairman and chief executive officer since 2001‚ and Al Kelly‚ president of American Express Company. The purpose
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Statistics in Business Katherine Wolf QNT/275 April 3‚ 2015 Barry Adkins Statistics in Business Statistics is all about collecting numerical data‚ organizing it‚ and interpreting the data to form hypothesis. While interpreting the data we are able to draw all kinds of conclusions from weather forecasts to how much money a company is projected to make over the next year. There are different types of statistics that can be used for different outcomes. You have to first identify the
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Running head: Misuses Statistics 1 Misuses Statistics Regena Kelley MAT126: Survey of Mathematical Methods Instructor: Zhimin Huang January 21‚ 2013 Misuses Statistics 2 Misuses Statistics Statistics and survey are misused and not accurate because of many factors. The types of these statistics are found suspect samples‚ asking Biased questions and misleading graphs. There are businesses that use these statistics with questions to convice people to accept
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Murder on the Orient Express Hercule Poirot‚ private detective and retired Belgian police officer‚ boards the Taurus Express train to Stamboul (Istanbul). On the train there are two other passengers‚ Mary Debenham and Colonel Arbuthnot. The two act as if they are strangers‚ but Poirot observes behavior that suggests that they are not. Poirot is suspicious of the couple. The train arrives in Stamboul and Poirot checks in at the Tokatlian Hotel. As soon as Poirot arrives he receives a telegram summoning
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Statistics in Business QNT/275 January 12‚ 2015 Kim Gravelle Statistics in Business Statistics are simply a way of gathering information from data. Learning from data is the essential use of statistics. The extraction of answers from data provides the foot print for further investigation and research. There are several different types and levels of statistics‚ they are nominal‚ ordinal‚ interval‚ and ratio ("Data Levels of Measurement"‚ 2014). The first level being nominal‚ allows for the use
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Hoover Motor Express Co. v. Clements Paper Co. 193 Tenn. 6‚ 241 S.W.2d 851 (1951) FACTS: The Hoover Motor Express Company delivered a written offer to purchase certain real estate to the Clements Paper Company on November 19‚ 1949. Williams‚ who is a vice president at Clements‚ had been authorized in December to accept Hoover’s offer‚ yet he did not contact Hoover by telephone until January 13‚ 1950 because he believed he would accept the offer unless he could negotiate a better deal. Clements
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