QMT2033 BUSINESS STATISTICS Assignment for mid -term break 1. Most of the information technology developers claim that wireless connection would give speed of at least 11 Mbps compared to wired connection. A sample of 105 computers using wireless connection shows it gives a mean of 11.7 Mbps and a standard deviation of 2.3 Mbps. a) Do you think that the wireless usage should be implemented? Test at 7% significance level). b) Repeat the test by using p-value approach. 2. A jack is usually used
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RUNNING HEAD: MARKET STRUCTURE Market Structure Denise M. Minor ECO 561 Week 3 Individual Assignment Professor John Lindvall November 11‚ 2010 Market Structure Thomas Money Services started out as a consumer finance company granting small loans for household needs. Over the years‚ the company expanded by issuing business loans‚ financing acquisitions and commercial real estate loans. The company also became involved in financing equipment through a subsidiary named
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p r(1 − p) pet 1 − (1 − p)et p 2 r MATHEMATICAL STATISTICS WITH APPLICATIONS This page intentionally left blank SEVENTH EDITION Mathematical Statistics with Applications Dennis D. Wackerly University of Florida William Mendenhall III University of Florida‚ Emeritus Richard L. Scheaffer University of Florida‚ Emeritus Australia • Brazil • Canada • Mexico • Singapore • Spain United Kingdom • United States Mathematical Statistics with Applications‚ Seventh Edition Dennis D. Wackerly
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Examine the reasons why some sociologists choose to use official statistics when conducting research. Firstly‚ official statistics are a source of secondary quantitative data which are gathered by the government or other official bodies. Many reasons for their use by sociologists when conducting research stems from the fact that they are a form of secondary data; meaning that they are not collected by the sociologist themselves. This makes them high in practicality‚ representativeness and reliability
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Subject Areas Use of Statistics 1. World of Sports • Enter results from the different tournaments around the world • Research projects to improve the quality of the game and keep the fans interested • provide analysis on players and team strategy‚ as well as tackle larger research projects • statistical t tools include basic regression analysis‚ logistic regression‚ Monte Carlo simulation‚ classification‚ and hierarchical regression 2. Education • Statistics provides simple yet instant information
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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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Due 10/09/2010 Question 2: using research into street violence to illustrate your argument‚ identify dilemmas associated with relying on police statistics as a measure of crime. When the annual crime statistics are reported‚ they can generate many emotions within society. These feelings can be conflicting depending on whether the crime statistics show an increase or decrease in crime fields. When crime rates are down the community feels relieved‚ protected and safe‚ restoring confidence in 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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Lecture Notes: Statistics A note on basic statistics Statistics is the practice or science of collecting and analyzing numerical data in large quantities. So there are two parts1. Collection of Data 2. Analysis of Data- understanding what the data says. Steps in Statistics To carry out any statistical operation‚ the following steps need to be followed‚ in the given order: 1. 2. 3. 4. 5. 6. Sampling Estimation Hypothesis Generation Testing Regression Prediction Collection of Data: Sampling
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not = 440 Statistic 4.9 With 98% confidence Lower limit 3.05348411 Upper limit 24.7249703 With 98% confidence we cannot reject Ho since the statistic is inside the acceptance zone b) Check the same hypothesis with 95% confidence. With 95% confidence Lower limit 3.81574825 Upper limit 21.9200493 With 95% confidence we cannot reject Ho since the statistic is inside
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