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 presenting
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Tenure and Store Performance One of the first steps in analysis of the data is to make a comparison of the 10 most profitable stores and the 10 least profitable stores. Hart claimed that the manager and crew tenure in the most profitable stores was almost four times the level of that in the least profitable stores. This analysis is however based solely on the summary statistics for those ten stores in each category. Taking a closer look at the results for the individual stores would suggest
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ASSIGNMENT SUBMISSION FORM Course Name: SMMD Assignment Title: Assignment 1 (HousePrices.jmp) Submitted by: Garima Agrawal (Section D) (Student name or group name) Group Member Name | PG ID | Garima Agrawal | 61410506 | Question1: The data for home values has a considerable wide range (429578) as compared to the inter-quartile range (93522). This means the data has a huge spread and the same can be verified from coefficient of variation which is even more than 41%. Besides
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QUESTION 3 (20 MARKS) a. A psychological test identifies people as being one of eight types. For instance‚ Type 1 is “Rationalist” and applies to 15% of men 8 % of women. Type 2 is “Teacher” and applies to 12% of men and 14% of women. Each person fits one and only one type. (i) Suppose college roommates have a particularly hard time getting along with each other if they are both ‘ Rationalist’. A college randomly assigns roommates of the same gender. Assuming that half of college roomate pairs
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1. 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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Syllabus 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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Chapter one summary The use of statistics is research is noted in this chapter. It reveals that statistical procedure could be segregated into two section and they are descriptive and inferential. In analyzing both descriptive statistics does exactly what it says‚ it describes the set of data. The problem is presented and descriptive statistical basically describes what the data has to say about the same issue. However inferential statistics main goal is making predictions or inferences about
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Uses of Statistics HCS/438 August 2‚ 2011 Mike Janson Uses of Statistics The use of statistics has been proven to assist the understanding of information‚ data‚ in many ways. Statistical information is not just collected‚ but it is also organized and quantified‚ providing a clearer picture for further study. This writer will explain how statistics are used in my personal workplace‚ and describe aspects of the statistics used. Statistics in Personal Workplace My personal workplace is what
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Case Problem 1: National Health Care Association(Descriptive Statistics) The National Health Care Association is concerned about the shortage of nurses the health care profession is projecting for the future. To learn the current degree of job satisfaction among nurses‚ the association has sponsored a study of hospital nurses throughout the country. As part of this study‚ a sample of 50 nurses was asked to indicate their degree of satisfaction in their work‚ their pay and their opportunities for
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BIO 2003 SUMMATIVE ASSIGNMENT 2 Introduction: The report analyses the result of a study on workers from brick and tile industries conducted by the Health and Safety Laboratory (HSL). HSL put down few criteria’s to the workers which being that neither of the workers from the tiles and brick industries should have worked in both the industries and that they did not smoke. The criteria’s put across was an assurance to attain reliable results. The essence of the study lies in detecting any difference
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