'Ratio data' diaporamas de présentation

IAM 530 ELEMENTS OF PROBABILITY AND STATISTICS

IAM 530 ELEMENTS OF PROBABILITY AND STATISTICS. INTRODUCTION. WHAT IS STATISTICS?. Statistics is a science of collecting data, organizing and describing it and drawing conclusions from it. That is, statistics is a way to get information from data. It is the science of uncertainty.

2.69k views • 172 slides

Descriptive Statistics

Descriptive Statistics. F. Farrokhyar, MPhil, PhD, PDoc Department of Surgery Department of Clinical Epidemiology and Biostatistics. March 18, 2009. To understand and recognize different types of variables To learn how to explore your data How to display data with numbers and tables

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INTERVIEWS

512 views • 40 slides

PPAL 6200 Research Methods and Info Systems

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Basic Statistics Overview

Basic Statistics Overview. Danielle Davidov, PhD. Preface.

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Proton Form Factor Measurements with Polarization Method

Proton Form Factor Measurements with Polarization Method. L.Pentchev The College of William and Mary For the GEp-2 g and GEp-III collaborations. JLab , June 8-10, 2009. Outline. GEp-III (E04-108) and GEp-2 g (E04-019) experiments

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Quantitative Analysis

Quantitative Analysis. Quantitative / Formal Methods. objective measurement systems graphical methods statistical procedures. why bother?. description esp. of populations ex: average height of people in room inference describe populations on the basis of samples

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COMPANY ANALYSIS

COMPANY ANALYSIS. FIN 3403, 3404 PROF DIGGLE. TEAMWORK PEER GROUP ANALYSIS WILL BE MADE USING REAL WORLD FINANCIAL STATEMENTS. FINANCIAL FORECASTING BASICS INTERPRETING REAL WORLD RATIOS BENCHMARKING. WHAT IS THE POINT OF THIS EXERCISE?. GETTING STARTED.

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Statistical Process Control Quality Assessment Model Building and Predicting

Engineering Applications of Statistics (will be known to us eventually as we go through our syllabus). Statistical Process Control Quality Assessment Model Building and Predicting Communicating with and Acting on Experimental Results Assessing Design Reliability Experimental Design.

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Financial Statement Analysis I: Chapter 5

Financial Statement Analysis I: Chapter 5. Important Decisions by the Debtor that Affect Credit Risk. A. The Capital Structure Decision (Debt/Equity) 1. Relative Costs of Debt and Equity Financing a. Risk and required returns b. Tax deductibility of interest

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Probability and Statistics

Probability and Statistics. Chapter 1 Notes. Probability and Statistics Chapter 1 Notes I. Section 1-1 A . Definition of Statistics 1. Statistics is the science of collecting, organizing, analyzing, and interpreting data in order to make decisions.

660 views • 23 slides

Measures of Central Tendency Descriptive Statistics Part 1

Measures of Central Tendency Descriptive Statistics Part 1. Cal State Northridge ? 320 Andrew Ainsworth PhD. What is a typical score like?. There are three indices of this central tendency: Mode Median Mean. Measures of Central Tendency. Mode: most common (frequent) number

331 views • 21 slides

Measurement

Measurement. quantifying the dependent variable. Importance of measurement. research conclusions are only as good as the data on which they are based observations must be quantifiable in order to subject them to statistical analysis

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Chapter

Chapter. 10. Measurement in Marketing Research. Basic Question-Response Formats. Open-ended Close-ended Scaled-response. Basic Question-Response Formats Open-Ended Unprobed. Open-ended question: presents no response options to the respondent

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Data collection

Data collection. Questionnaires Interviews Accounts Observation tests. questionnaires. Planning a questionnaire Decide the objectives Decide the population and the sample Generate topics / concepts and data required to meet the objectives Decide kinds of measures

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EPE/EDP 557

EPE/EDP 557. Correlation Definition Correlation vs Causation Calculations & Tests Pearson r (interval or ratio data) Spearman rho (ordinal data) Chi Square Overview Important Concepts & Calculations Requirements. EPE/EDP 557. Correlation Definition Correlation vs Causation

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Scales of Measurement

Scales of Measurement 1. Nominal Scale - consists of levels or categories , labels or names identify the categories - strictly , no measurement is involved - categories are usually coded 1, 2, 3, and so on, only to facilitate counting.

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QBA 260

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Levels of Measurement

Levels of Measurement. Alanna Pugliese Katherine Perdomo. Levels of measurement. There are 4 levels of measurement Nominal Ordinal Interval Ratio. Types of data. Categorical . Numerical. Have standard units of measurement Interval Ratio.

292 views • 7 slides

Scales of Measurement

Scales of Measurement. Notation. m( O i ) = our measurement of the amount of some attribute that object i has t( O i ) = the true amount of that attribute that object i has. Ordinal Data. m(O 1 ) ? m(O 2 ) only if t(O 1 ) ? t(O 2 )

184 views • 6 slides