STAT 600 Statistics and Quantitative Analysis PROJECT: Stock return estimation The project must be done by 6-15 a.m. October, 16th. You should submit your projects before the class begins. This is a group project. Read the course outline for general guidelines. Good luck! The project is closely related to Lectures 1-5 of the class. Today is September 15, 2013 and you have just started your new job with a financial planning firm. In addition to studying for all your license exams, you have...
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Open Documentdiffers from that obtained from Stepwise and Backward Elimination Method. It is not hard to understand this phenomenon: Since for the Stepwise/Backward Elimination method, F-statistic plays an important role in selecting a variable: the F-statistic for a variable to be added must be significant at the SLENTRY level, the F-statistic for a variable to be removed must be significant at the SLSTAY level. While the MaxR method selects variables depending on which variable or variable combination can produce...
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Open Document1. Introduction This report is about the case study of PAR, INC. From the following book: Statistics for Business an Economics, 8th edition by D.R. Anderson, D.J. Sweeney and Th.A. Williams, publisher: Dave Shaut. The case is described at page 416, chapter 10. 2. Problem statement Par, Inc. has produced a new type of golf ball. The company wants to know if this new type of golf ball is comparable to the old ones. Therefore they did a test, which consists out of 40 trials with the current...
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Open Document Statistical Analysis BU 510 601 2 Credit Hours Fall 2013 Instructor: Shrikant Panwalkar Office phone: (410) 234 9456 Office Hours: By appointment panwalkar@jhu.edu Required Text and Learning Materials Business Statistics in Practice; 6th Edition, McGraw-Hill Higher Education, ISBN-13 978-0-07-340183-6 (There are other ISBN numbers) Authors: Bowerman, Bruce; O'Connell, Richard. (the cover shows a third author – Murphree) Please note: 7th edition is available, however...
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Open Document| Statistics 101 Report | The Kentucky Milk Case Study | | | | Preliminary Analysis 2a) Figure 1: X as a Data Object X is a data frame as derived from the program R shown above in Figure 1. There are 274 observations of 11 variables. The number of observations is obtained from the number of rows while the number of variables is obtained from the number of columns. 2b) Figure 2: Creating a sub-data frame from X Figure 3:Sub-data frame from X Figure 2 shows a screenshot...
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Open DocumentStatistics can be defined as “ the science that deals with the collection, classification, analysis, and interpretation of numerical facts of data, and that, by use of mathematical theories of probability, imposes order and regularity on aggregates of more or less disparate elements” (Dictionary.com, LLC, 2008). Yet how do we use these specific elements in our everyday working lives? Many don’t realize the extent to which we as a culture base our decisions on statistics. We us them in something...
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Open DocumentGM 03 Business Statistics Assignment II Assignment Code: 2012 GM03 B2 Last Date of Submission: 15th November 2012 Maximum Marks: 100 Attempt all the questions. All questions are compulsory and carry equal marks. SECTION – A 1. a) Explain the need for different forecasting techniques. How can we evaluate as to how good is our forecast. b) Collect data on the amount of expenditure you do each day for the next 25 days and...
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Open DocumentExamine 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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Open DocumentStatistics in Business Heather Vinson QNT/351 May 14, 2013 Babak Memarian Statistics in Business Statistics is the branch of mathematics used to collect, analyze, interpret, and present data. It is used by business owners to make calculated decisions regarding the future of their companies. Types of Statistics There are two types of statistics. Descriptive statistics deal with describing a set of data elements graphically. This type of statistic does not make...
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Open DocumentMM207 Statistics Unit IV Mid Term Project 1. In the following situation identify the implied population. A recent report on the weekly news presented the findings of a study on the effectiveness of Onglyza, along with diet and exercise, for treating diabetes. According to Bennett (2009), a population is defined as “the complete set of people or things being studied” in a statistical study. Given that the information is in relation to finding the success of a drug used to care for...
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Open Document Simply use statistics as a tool. You will be given a data. (Next year you will not be given data, you will gather data yoruself). 1. Data: one of the variables is dependent and other dependent. Can be multiple. Then do regression analysis. ANOVA for overall significance and Regression equation. And write based on ANOVA there is a significance or not. 2. Some comments on correlation: volume vs. horse power etc. 3. Hypothesis test of one population. I assume that the mean is etc etc. Small...
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Open DocumentSubject 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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Open DocumentScenario: As an upcoming audit approaches, you want to ensure that your staff understands the basics of healthcare statistics and research. You decide to create a training packet that will be distributed to all employees in your department. For newly hired employees, the packet will assist them in learning the basics of the department. For current employees, the packet will serve as a review in order to maintain sharpened skills throughout the department. Create a written training piece (traditional...
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Open DocumentIMPORTANCE OF STATISTICS In today's world we are faced with situations everyday where statistics can be applied. Statistics can be used to determine the potential outcome of thousands of things where the human mind alone wouldn't be able to. Statistics benefits all of us because we are able to predict the future based on data we have previously gathered. Being able to predict the future not only changes our lifestyle but also helps us be more efficient and effective. Statistics is the science of...
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Open DocumentHistory and Development of Statistics Simple forms of statistics have been used since the beginning of civilization, when pictorial representations or other symbols were used to record numbers of people, animals, and inanimate objects on skins, slabs, or sticks of wood and the walls of caves. Before 3000 BC theBabylonians used small clay tablets to record tabulations of agricultural yields and of commodities bartered or sold. The Egyptians analyzed the population and material wealth of their country...
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Open Document Inferential Statistics and Findings Erick Mart QNT/561 August 25th 2014 Mario LOPEZ Inferential Statistics and Findings Inferential Statistic is the process of drawing conclusions from data that are subject to random variation, for example, observational errors or sampling variation. Our team uses inferential statistic to compare two groups, which are Melks and DHL. This paper outlines the sampling and data collection procedure used to test the null hypothesis. The null and alternate...
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Open Document916441174 Range 3.5 Minimum 1.5 Maximum 5 Sum 206 Count 49 Confidence Level(95.0%) 0.196039006 In both the Charismatic and the punitive condition data sets there were 49 people surveyed. We know this because we were able to use descriptive statistics to show the count and that shows the number of people surveyed. The average or the mean of the charismatic condition is 4.20. The standard error is saying that 0.0975 % is the error that will normally occur if two different people are comparing...
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Open DocumentData Analysis: Analyzing Data - Inferential Statistics Inferential statistics deal with drawing conclusions and, in some cases, making predictions about the properties of a population based on information obtained from a sample. While descriptive statistics provide information about the central tendency, dispersion, skew, and kurtosis of data, inferential statistics allow making broader statements about the relationships between data. Inferential statistics are frequently used to answer cause-and-effect...
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Open DocumentStatistics and Psychology Paper There are numerous applications of statistical reasoning and research methods in the field of psychology. From simple aspects of reading and interpreting psychology articles, to completing personal research, statistics is a necessary concept to understand. The scientific method is essential to research, and many of the concepts cross the lines into statistics. It is also imperative for us to compare and contrast the characteristics of primary and secondary data...
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Open Documentshirt is classiﬁed as either perfect or as ﬂawed and the shift that produced the shirt is also recorded. In the test on the relation between quality and shift that the manager can now perform, what is the number of degrees of freedom of the test statistic? a. The number of degrees of freedom is 2. b. The number of degrees of freedom is 6. c. The number of degrees of freedom is 598. d. The number of degrees of freedom is 599. 3. A police oﬃcer believes that half of the cyclists ignore red traﬃc lights...
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Open Documentarticulation skill based on sound knowledge of statistics, which I developed during my academic career both as a student and teacher of Statistics at BHU, greatly contributed to my progress and success in banking career. I am grateful and thankful to all my teachers and colleagues in the department for what I am today. 4. Today, I have chosen to speak on a theme which is directly relevant to all of you and that is “Uses and Misuses of Statistics”. Let me begin with a quote: The safety of science...
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Open DocumentSyllabus for Statistics Course No. 21090024 Period：54 Credit：3 Course Nature：Compulsive Assessment: Usually 10%, Group Work 20%, Final Exam70% Textbook： Statistics(3rd Edition)， Junping Jia，Xiaoqun He，Yongjin Jin，China Renmin University Press，2007 Reference： Statistics for Business and Economics(7th Edition) Anderson, D.R., & Sweeney, D.J. & Williams, T.A. 1.Introduction Statistics is a core curriculum for students in finance and economics major, which is a science method that starts with data...
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Open DocumentBUS 105e: Statistics By Dr Tony Halim GBA: 27 February 2013 Done by: Koh En Song Andrew (Q1211397) Melissa Teo Kah Leng (E1011088) Woon Wei Jie Jared T 04 1. Over the span of 100 days, the total revenue for Unicafe North and Unicafe West is $21876.60 and $22042.00 respectively. The average revenue for Unicafe North is $218.77. The average revenue for Unicafe West is $220.42. The highest revenue occurred on the 88th day for both outlets. The lowest revenue occurred on 39th day for...
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Open Document MBA 501A – [STATISTICS] ASSIGNMENT 4 INSTRUCTIONS: You are to work independently on this assignment. The total number of points possible is 50. Please note that point allocation varies per question. Use the Help feature in MINITAB 16 to read descriptions for the data sets so that you can make meaningful comments. [10 pts] 1. Use the data set OPENHOUSE.MTW in the Student14 folder. Perform the Chi Square test for independence to determine whether style of home and location are are related...
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Open Document$1,040 D. $1,100 3. Which one of the following is not a component of a time series? A. Secular trend B. Moving average C. Seasonal variation D. Irregular variation E. All of the above are components 4. The possible values for the Durbin-Watson statistic are A. any value B. any value greater than zero C. any value from 0 to 4 inclusive D. any value less than zero. 5. A question has these possible choices—excellent, very good, good, fair and unsatisfactory. How many degrees of freedom are there using...
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Open Documentchecked. The Null or Alternative Hypothesis will be accepted or rejected on the basis of a statistical analysis, which will be used to analyse the median percentage of damaged cells got from the brick and tile operations. Table 1: Descriptive Statistics of brick and tile operation workers percentage damaged cells Variable | N | N* | Mean | SE Mean | St: Dev. | Minimum | Q1 | Median | Q3 | Maximum | % Damaged cells of Tile operation | 27 | 0 | 1.337 | 0.210 | 1.090 | 0.200 | 0.600...
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Open DocumentIn recent years sports statistics have become more valued by professional teams, although this change has been a slow process. Hall of Fame baseball general manager Branch Rickey hired the first full time statistician in 1947, and made numerous statistical formulas to enhance his performance. Yet despite his decades of success, most sports owners did not value advancing statistical methods of evaluating players. For instance, noted statistician Bill James did his research as an outsider to baseball...
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Open DocumentNEED HELP? Check out the Free Tutoring Available for BUSN311 students. You will need to sign up for the tutoring. Your instructor has the session-specific information. Don’t wait, tutoring appointments fill up quickly. Beginning Statistics Lab. Presentations and Resources are Available 24/7. Synchronous Live Sessions and Office Hours are held during the session. Live Sessions are also recorded for viewing at your convenience. Your instructor has the session-specific information. ...
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Open DocumentDescriptive & Inferential Statistics The study of statistics plays a significant role in each of our lives. Statistics is a method often used in every scientific field to relay important information found, support new theories as they are developed and keep our society aware and up to date with the issues that affect us and what type of effect they have. From a psychological standpoint statistics provides each individual with the tools necessary to understand the work of psychologists before...
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Open DocumentManagerial Statistics Distinguish between primary data and secondary data? OBJECTIVE The main objective of this topic is to measure the degree of relationship between the variables under consideration.The correlation analysis refers to the techniques used in measuring the closeness of the relationship between the variables. DEFINITION Some important definitions of correlation are given below: 1. “Correlation analysis deals with the association between two or more variables”. ---- Simpson &...
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Open Documentaddress the following tasks that policymakers have asked you to perform: a) Produce scatter-plots of the relationship between FOODEXP and the other explanatory variables. Comment on the graphs. Produce a correlation table and comment on the statistics. (no more than 200 words) (10 marks) b) Regress FOODEXP on HINC only. Conduct a statistical analysis and give your comments. Does the regression outcome fit with your prediction of the relationship between the two variables? Explain. (no more...
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Open Document3ER PARCIAL Inferential statistics Sampling * The purpose of sampling is to select a set of elements (sample) from a population that we can use to estimate parameters about the population * The bigger the sampling, the more accurate our parameters will be. example: In the experiment of deciding if CEGL girls are smarter that CEGL boys, which would be your statistical hypothesis? Hypothesis testing But now, you already gathered information about a sample No, you will test if your...
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Open Document30-year mortgage rate for small banks is less than 6 percent? Estimate the p-value. Chapter 11 27. A recent study focused on the number of times men and women who live alone buy take-out dinner in a month. The information is summarized below. Statistic Men Women Sample mean 24.51 22.69 Population standard deviation 4.48 3.86 Sample size 35 40 At the .01 significance level, is there a difference in the mean number of times men and women order take-out dinners in a month? What is the p-value...
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Open Documents |COLLEGE OF THE BAHAMAS | |BUSINESS STATISTICS | |FIRST INTERM EXAM | |COURSE: STAT201 ...
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Open DocumentStatistics can be defined as the method of collection and analysis of data in such a way as to minimize any uncertainty in the conclusion drawn from the data so as to be able to assess the degree of such uncertainty. It could be observed from the above definition that statistical analysis, error could arise but statisticians need to minimize such errors so as to be able to achieve a desirable result. Also statistics can be said to be; a branch of mathematics that deals with the collection, organization...
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Open Documentdifferent for the two types of cola drinkers? Could you identify your favorite brand in this kind of test? Since it is a 2 × 2 table, try also a two-tailed two-sample z test for π1 = π2 (see Chapter 10) and verify that z2 is the same as your chi-square statistic. Which test do you prefer? Why? (Data are from Consumer Reports 56, no. 8 [August 1991], p. 519.) Cola Correct? | Regular coke | Diet coke | Row Total | Yes, got it right | 7.00 | 7.00 | 14 | No, got it wrong | 12.00 | 20.00 | 32 | Col total...
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Open DocumentDescriptive and Inferential Statistics Statistical methods in psychology have two main branches, which are descriptive and inferential. They each play a major part in the data that is collected for research and other studies. This paper will show the functions of statistics, how descriptive and inferential statistics are defined and the relationship between the two. Statistics is a necessary tool in psychology. It provides data for research studies as well as providing background information and...
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Open DocumentDescriptive and Inferential Statistics Paper PSY 315 Descriptive and Inferential Statistics Whether doing original research or conducting literature reviews, one must conclude what a powerful and versatile tool statistics are in the hands of researchers. From basic statistics such as data description, to using complex statistical methods to foresee future patterns or strengthen scientific claims about current climates, the role of statistics in research cannot be taken lightly and is essential...
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Open DocumentDescriptive and Inferential Statistics Paper Descriptive and Inferential Statistics Paper Statistics are used for descriptive purposes, and can be helpful in understanding a large amount of information, such as crime rates. Using statistics to record and analyze information, helps to solve problems, back up the solution to the problems, and eliminate some of the guess work. In Psychology there has to be a variable or variables to be organized, measured, and expressed as quantities. Information...
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Open DocumentIn today’s world, we are faced with situations everyday where Statistics can be applied. In general, Statistics is the science of collecting, organizing, and analyzing numerical data. The techniques involved in Statistics are important for the work of many professions, thus the proper preparation and theoretical background of Statistics is valuable for many successful career paths. Marketing campaigns, the realm of gambling, professional sports, the world of business and economics, the political...
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Open DocumentResearch and Statistics in Psychology Tracy Charles PSY/315 October 14, 2012 Jennifer Slothower Research and Statistics in Psychology Psychologist need to adhere to scientific research methods when doing a study “the scientific method requires systematic observation and a willingness to modify understanding based on these observations” (Cloninger et al., 2008). This method involves careful observation and collection of data to rule out theories that are not valid. “Scientific...
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Open DocumentDescriptive and Inferential Statistics Greg Hagen, Jean Parker, Jade Riley, Nanika Woods, Myron Hamilton, Tajah Gutierrez, Treva Eley PSY/315 June 9, 2012 Nancy A. Walker Descriptive and Inferential Statistics Statistics is a vital part of the psychological field as the analysis of statistics provides researchers with a means of both describing the results of research and surmising from those results, as well as drawing conclusions related to a hypothesis. Statistics gives a better understanding...
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Open Document(SY16C) -INTRODUCTORY STATISTICS FOR THE BEHAVIOURAL SCIENCES SUMMER SCHOOL 2012/2013- COURSE OUTLINE Lecturer: Ayesha Facey Office: Room 46, Faculty of Social Sciences Office #: 970-6324 E-mail: ayeshafcy@yahoo.com COURSE OBJECTIVE This course aims to introduce students to basic univariate and bivariate statistics. A student who successfully completes this course will possess a reasonable level of knowledge of basic statistics and their interpretations...
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Open DocumentRunning head: DESCRIPTIVE AND INFERENTIAL STATISTICS 1 Descriptive and Inferential Statistics DESCRIPTIVE AND INFERENTIAL STATISTICS 2 Descriptive and Inferential Statistics Descriptive and inferential statistics are incredibly similar forms of research testing within psychology. Each seeks to analyze, describe, and possibly predict a population’s behavior. As with psychology itself, statistical analysis within psychology began as a philosophy (Goodwin, 2008). This philosophy quickly...
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Open DocumentSTATISTICS AND DECISION-MAKING IN HRM (word count 1155) The word statistics has a Latin origin where the word status means state. Statistics is defined as the science that helps us understand how to collect, organize and interpret numbers or other information (data) about some topic (Bennett, et al., 2003). It is a discipline of data collection and summarizing to aid understanding and decision-making. It is also concerned with evaluation of the present status and predicting the future (Stockberger...
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Open DocumentResearch, Statistics, and Psychology Paper PSY 315 Research, Statistics, and Psychology Paper Two important factors of psychology and studying it are statistics and research. This paper will explain what research is and the scientific method. This paper will also explain how research is important to psychology. When a researcher does studies on psychology they receive data from the subjects, they are studying. In any type of research there are two major types of data, they are primary data and...
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Open Document9comprobacion de la hipótesis Ilustración Conclusión Recomendaciones 12. Bibliografía / Referencias citadas Introduction The statistics have been used in business long time ago, but with the new technologies used today, that helps the people with software and programs to make the data collection easier. In this work we are going to present why the statistics are important in business, generally in big companies that need that data to help the to improve their sells and the product they make...
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Open Document1. A radio station that plays classical music has a “By Request” program each Saturday night. The percentage of requests for composers on a particular night are listed below: Composers Percentage of Requests Bach 5 Beethoven 26 Brahms 9 Dvorak 2 Mendelssohn 3 Mozart 21 Schubert 12 Schumann 7 Tchaikovsky 14 Wagner 1 a. Does the data listed above comprise a valid probability distribution? Explain. ...
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Open DocumentResearch, Statistics, and Psychology PSY315 Jan 12, 2014 Without research methods and processes, an unimaginable amount of information would be lost to the world. Though research topics and researcher personalities vary greatly, universal truths or basics of research stand the test of time. In this paper, I examine the role of research and statistics in the field of psychology by explaining several important parts of research. I define research and...
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Open Document Statistics BUS308: Statistics for Mangers Instructor: Learning Statistics Statistical data has become an item that we see all around us in our everyday lives, from television programs talking about selling products or politicians using data to show how they perform in their jobs, in hopes to be reelected. Throughout the course in Statistics for Managers, I have learned many things on how the use of statistical information can help me to understand these items and also to help me to perform...
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Open DocumentStatistics for Business Intelligence – Hypothesis Testing Index: 1. What is Hypothesis testing in Business Intelligence terms? 2. Define - “Statistical Hypothesis Testing” – “Inferences in Business” – and “Predictive Analysis” 3. Importance of Hypothesis Testing in Business with Examples 4. Statistical Methods to perform Hypothesis Testing in Business Intelligence 5. Identify Statistical variables required to compute Hypothesis testing. a. Correlate computing those...
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Open Document Final Project: Nyke Shoe Company Barbara Greczyn STA 201 - Principles of Statistics Instructor Alok Dihtal April 26, 2015 Introduction Nyke Shoe Company has been in business for over 50 years. Over the last five years, the company has been undergoing some financial hardship due to an erratic market and an inability to understand what the consumer actually needs. In a last ditch effort to avoid bankruptcy, they have adopted a new business model which entails the development...
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Open DocumentDescriptive Statistics using Excel May 2011 / Dr Rensvold Open the Excel spreadsheet labeled "Example Database." The first page is the Data Dictionary. The Variable Label is the "handle" used for computation. The Variable Name is longer and more descriptive. The Values column shows the numerical values associated with categorical variables. In the data dictionary, you can see that the only categorical (nominal) variable is SEX. The others are ratio variables (why?) Click on the Data tab...
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Open DocumentQ-1 STATISTICS PLAYS A VITTAL ROLE IN ALMOST EVERY FACET OF HUMAN LIFE.DECRIBE THE FUNCTIONS OF STATISTIC.EXPLAIN THE APPLICATION OF STATISTICS. ANS- MEANING OF STATISTICS- ACCORDING TO SELIGMAN “STATISTIC IS A SCIENCE WHICH DEALS WITH THE METHOD OF COLLECTING, CLASSIFYING, PRESENTING, COMPARING & INTERPRETING THE NUMERICAL DATA TO THROW LIGHT ON ENQUIRY.” ACCORDING TO CROXTON & COWDEN- “STATISTICS IS THE SCIENCE OF COLLECTION, PRESENTATION, ANALYSIS & INTERPRETATION OF NUMERICAL DATA FROM LOGICAL...
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Open Documentwere randomly and independently chosen from the populations, population distributions are normal for each group; and population variances are equal for all groups. The assumptions of ANOVA are identical to the t-test and the calculated statistic is called an F-value which has a probability value associated with it. As with the t-test, if our probability value is less than 0.05 we reject our null hypothesis (in this case that there is no difference among the treatment groups). This p-value...
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Open DocumentSTATISTICS - Lab #6 Statistical Concepts: Data Simulation Discrete Probability Distribution Confidence Intervals Calculations for a set of variables Open the class survey results that were entered into the MINITAB worksheet. We want to calculate the mean for the 10 rolls of the die for each student in the class. Label the column next to die10 in the Worksheet with the word mean. Pull up Calc > Row Statistics and select the radio-button corresponding to Mean. For Input variables:...
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Open DocumentBUSINESS STATISTICS Agenda Introduction Descriptive Statistics One–Tailed Test About a Population Mean t-Test Using Two Independent Samples t-Test For Paired Samples Analysis of Variance (ANOVA) Regression Analysis U.S. Patent and Trademark Office (PT0) Descriptive Statistics Frequency Vs Total Provisional Filings One–Tailed Test About a Population Mean Selected a small sample of 12 months’ provisional application filings for large US entities (for fiscal year 1996) 1. Determine the Hypotheses...
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Open DocumentResearch and Statistics in Health Sciences As health care evolves in our nation, the role of research and statistics will evolve right along with it. There will be more research into medical care, health care costs, medications, and types of treatments. The most common types of statistics reported will be the fertility rates, which includes vital statistics (birth, death, marriage, divorce rates), morbidity (the incidence of disease in a population), and mortality (the number of people who...
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Open Document"Lies, damned lies, and statistics" is a phrase describing the persuasive power of numbers, particularly the use of statistics to bolster weak arguments. It is also sometimes colloquially used to doubt statistics used to prove an opponent's point. The term was popularised in the United States by Mark Twain (among others), who attributed it to the 19th-century British Prime Minister Benjamin Disraeli (1804–1881): "There are three kinds of lies: lies, damned lies, and statistics." This Line stresses...
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Open DocumentHow to Lie with Statistics Summary There are some people that rely heavily on the statistical information provided by the media, government, and other research groups in order to form opinions or come to a conclusion on a particular idea or product. However they fail to realize that a lot of the time the data is manipulated in such a way that leads them to believe something that is not actually the case. Statistics can lie in many ways the first way is by using a sample that has a bias. For instance...
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Open Document