INTRODUCTION Statistics and mathematics are everything to economics. infact statistics and Mathematics‚ the economic field wouldn’t even exist. Economist need statistics to represent data‚ to track and store information‚ to identify trends‚ to attribute value and mathematics to calculate those figures.The way to look at the relationship between statistics and economics is that economics is essentially the study of human decisions and trends‚ and how these have a financial impact. Economists
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Boiling point of Salt Water Experiment Ex.3: For experiment 2‚ Complete steps (a)-(c) of the checklist. Experiment 2: Does the boiling point of water differ with different concentrations of salt? CheckList (a) Define the objectives of the experiment The purpose of this experiment is to determine the boiling point of water with different levels of concentration of salt. (b) Identify all sources of variation (i) Treatment factors and their levels The treatment factor in this experiment
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An exam consists of 20 multiple-choice questions. Each question has five possible answers and all questions carry equal weight. Mary has not studied for the exam and will be picking her answers at random. What is the probability that Mary will get a score of at least 30% on this exam? n=20‚ p=0.20 P(X≥6) (0.30)(20)=6 Distribution Plot Binomial‚ n=20‚ p=0.2 0.25 Probability 0.20 0.15 0.10 0.05 0.1958 0.00 0 P(X≥6)=0.196 X 6 If 40% is the lowest passing
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STUDENT INDUSTRIAL TRAINEE [I.T] REPORT ON WORK DONE‚ PROJECT INVOLVED IN AND SKILL ACQUIRED DURING THE PERIOD OF ATTACHEMENT IN THE BELOW NAMED ORGANIZATION SIDMACH TECHNOLOGIES NIGERIA LIMITED [pic] BY BIDMUS MOSHOOD OLAWALE FROM FEDERAL POLYTECHNIC OFFA KWARA STATE DEPATMENT: COMPUTER SCIENCE AUGUST‚ 2013 TABLE OF CONTENTS TITLES PAGES ABSTRACT 3 APPRECIATION
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ECO1ISB Introductory Statistics for Business Assignment 2: Inferential Statistics |Hand out: |Week 7 | |Hand in : |Week 11 | 1. [8 marks] What are parameters and statistics (or estimates)? List two of the parameters and their corresponding statistics that were covered
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12/21/2013 VIETNAM NATIONAL UNIVERSITY – HOCHIMINH CITY INTERNATIONAL UNIVERSITY SCHOOL OF BUSINESS ADMINISTRATION ------o0o------ CHAPTER 14: CHI-SQUARE TESTING STATISTICS FOR BUSINESS TAs: Vo Vuong Van Anh‚ Le Phuoc Thien Thanh‚ and Le Nhat Ho December 21‚ 2013 TABLE OF CONTENTS • PART I: CHI-SQUARE TESTING FOR GOODNESS-OF-FIT. • PART II: CHI-SQUARE TESTING FOR NORMAL DISTRIBUTION. • PART III: CHI-SQUARE TESTING FOR INDEPENDENCE. December 2013 Powered by Vo Vuong Van Anh 2 1 12/21/2013
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Last name: First name: Student #: STA 304H1 F/1003H F SUMMER 2009‚ First Test‚ May 28 (20%) Duration: 50min. Allowed: hand-calculator‚ aid-sheet‚ one side‚ with theoretical formulas and definitions only. [25] 1) A marketing analyst is asked to study the buying habits of shoppers at a national chain store (e.g. Sears). Suppose there are 150 stores around the country. (a) Describe the population of interest. (b) Describe in short a realistic sampling procedure for obtaining a representative
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5.23 Let x be a normally distributed random variable having mean = 30 and standard deviation . Find the z value for each of the following observed values of x: In each case‚ explain what the s value tells us about how the observed value of x compares to the mean 5.29 Weekly demand at a grocery store for a brand of breakfast cereal is normally distributed with a mean of 800 boxes and a standard deviation of 75 boxes‚ a. What is the .probability that weekly demand is (1) 959 boxes or less? (2) More
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Executive Overview‚ Part I The management staff at a hotel located in a popular Caribbean resort area is engaged in planning activities for the next year. Fundamental to any plans made will be the expected occupancy rate of the hotel. The management staff has extracted quarterly occupancy rates for the past 5 years from the hotel records to forecast the occupancy rates for quarters 1‚ 2‚ 3 and 4 of next year. Observing that this is a time series problem‚ we first generated a time series plot of
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G036 * Yes because the p-value is less than 0.05 or No‚ because the p-value is greater than 0.05 * The coefficient of variation is the standard deviation of a data set‚ divided by the mean of the same data set. * Z score = x -ms * The Independent part is what you‚ the experimenter‚ changes or enacts in order to do your experiment. The dependent variable is what changes when the independent variable changes - the dependent variable depends on the outcome of the independent variable
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