Chapter 1 : Introduction Learning goals ❖ What is meant by Statistics ❖ What is meant by Descriptive Statistics and Inferential Statistics ❖ Difference between Parameter & Statistic ❖ Types of Statistical Inferences What is meant by Statistics ? Statistics is the science of collecting‚ organizing‚ presenting‚ analyzing‚ and interpreting numerical data to assist in making more effective decisions. Types of Statistics Descriptive Statistics : • Methods of organizing‚ summarizing‚ and
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data in that ordinal data can be rank ordered. Examples of nominal data include gender‚ ethnicity‚ marital status‚ medical diagnoses‚ and primary language. Nonparametric or distribution-free analysis 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
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Analysis Of the Economic Growth of Bangladesh and External Sector Behavior Submitted to: Dr.Sheik Mohammad Rafiul Huque Assistant Professor (IBA JU) Course Name: Business Statistics II Bus: 207 Submitted by: Group Name: The Achievers Group Member Class ID 1.Jannatul Ferdous 1893 2.Shamima Nasrin Chadni 1878 3.Adiba Tasnim 1892 4.Shammi Akter 1884 5.Md. Ashik Ur Rahman 1908 6.S.M. Mamonur Rashid 1909 1
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Crime and Justice NSW Bureau of Crime Statistics and Research Number 54 February 2001 What Causes Crime? Don Weatherburn It is difficult to find a succinct‚ broad and non-technical discussion of the causes of crime. This bulletin provides a brief overview‚ in simple terms‚ of what we know about those causes. After presenting some basic facts about crime‚ the bulletin is divided into three main sections. The first looks at the factors which makes some individuals more likely to become involved
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Personality: What makes you the way you are? - Science News - The Independent At some point in your life‚ you ’ve probably filled in a personality questionnaire ("Do you see yourself as....?")‚ and wondered as you ticked the boxes if there can really be any validity to such a simplistic way of assessing people. Surely the scores just reflect your mood on the day‚ or what you want the investigator to think. Surely everyone gives the same answer‚ which is "it depends". Or even if the scores measure
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simple linear regression equation = β0 + β1 Xi‚ β0 = -74.5926‚ β1 =0.0954 = -74.5926+ 0.0954Xi Where is personal consumption expenditure in billion of dollars Xi is disposable personal income (PCE) in billions of dollars (*PCE is used as a short form of disposable personal income in the following report) (b) Interpret the coefficient The slope of disposable income (β1= 0.0953) tell us for each additional billion of dollars in disposable personal income‚ the PCE increase by 0
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direction and management‚ which are focused towards the accomplishment of organizational objectives. This study helps in identifying and analyzes various types of work design that are being used at workplace. In this study the organization’s name‚ its products and services‚ size of organization and a brief description of what is work design shall be included to give assentation to the explained points. This analysis shall provide detailed and very clear covering description of the work design that includes
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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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following result: Estimate Std. Error z value Intercept 15.2954317 7.3280842 2.088 Temperature -0.2360002 0.1073615 2.198 a. What is the fitted logistic regression equation for predicting the log(odds) of an O-ring failure? b. If the temperature at launch was 63 F‚ what are the estimated odds of an O-ring failure? c. What is the probability of an O-ring failure at 63 F? d. What is the 95% confidence interval estimate of the true slope β1 ? 1 2. A research project studied the physical properties of
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In each of the assignments in this course‚ you will be dealing with the following scenario: American Intellectual Union (AIU) has assembled a team of researchers in the United States and around the world to study job satisfaction. Congratulations‚ you have been selected to participate in this massive global undertaking. The study will require that you examine data‚ analyze the results‚ and share the results with groups of other researchers. Job satisfaction is important to companies large and
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