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Statistics - John S. Witte

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      Présentation Statistics de John S. Witte Format Broché

       - Livre Primaire parascolaire

      Livre Primaire parascolaire - John S. Witte - 01/03/2021 - Broché - Langue : Anglais

      . .

    • Auteur(s) : John S. Witte - Robert S. Witte
    • Editeur : John Wiley & Sons Inc
    • Langue : Anglais
    • Parution : 01/03/2021
    • Format : Moyen, de 350g à 1kg
    • Nombre de pages : 496.0
    • ISBN : 1119254515



    • Résumé :
      x 163

      7.5 Assumptions 166

      7.6 Interpretation of R2 167

      7.7 Multiple Regression Equations 172

      7.8 Regression Toward The Mean 172

      Summary 175

      Important Terms 175

      Key Equations 175

      Review Exercises 176

      PART 2 Inferential Statistics: Generalizing Beyond Data 179

      8 Populations, Samples, and Probability 181

      Populations and Samples 182

      8.1 Populations 182

      8.2 Samples 183

      8.3 Random Sampling 184

      8.4 Tables of Random Numbers 185

      8.5 Random Assignment of Subjects 186

      8.6 Surveys or Experiments? 188

      Probability 188

      8.7 Definition 189

      8.8 Addition Rule 189

      8.9 Multiplication Rule 191

      8.10 Probability and Statistics 195

      Summary 197<...

      Biographie:

      Robert Witte earned his Ph.D. at Stanford University. He is an Emeritus Professor of Psychology at San Jose State University, where he taught courses in statistics for more than three decades. He has had a number of publications in peer-reviewed journals, as well as a number of nationally-competitive research grants and a post-doctoral Research Fellowship at Indiana University.??

      John Witte is Professor of Epidemiology and Biostatistics at the University of California, San Francisco. ?He received his PhD from the University of California, Los Angeles, and was previously on the faculty at the University of Southern California and Case Western Reserve University.?He has published over 150 papers, and his research is primarily focused on statistical genetics and the genetic epidemiology of cancer.?

      ...

      Sommaire:

      Preface iv

      Acknowledgments vi

      1 Introduction 3

      1.1 Why Study Statistics? 4

      1.2 What Is Statistics? 4

      1.3 More about Inferential Statistics 6

      1.4 Three Types of Data 9

      1.5 Levels of Measurement 10

      1.6 Types of Variables 14

      1.7 How to Use This Book 19

      Summary 20

      Important Terms 21

      Review Questions 21

      PART 1 Descriptive Statistics: Organizing and Summarizing Data 25

      2 Describing Data with Tables and Graphs 27

      Tables (Frequency Distributions) 28

      2.1 Frequency Distributions for Quantitative Data 28

      2.2 Guidelines 29

      2.3 Outliers 34

      2.4 Relative Frequency Distributions 35

      2.5 Cumulative Frequency Distributions 36

      2.6 Frequency Distributions for Qualitative (Nominal) Data 38

      2.7 Interpreting Distributions Constructed By Others 39

      Graphs 40

      2.8 Graphs for Quantitative Data 40

      2.9 Typical Shapes 45

      2.10 A Graph for Qualitative (Nominal) Data 47

      2.11 Misleading Graphs 48

      2.12 Doing It Yourself 50

      Summary 50

      Important Terms 52

      Review Questions 53

      3 Describing Data with Averages 59

      3.1 Mode 60

      3.2 Median 61

      3.3 Mean 63

      3.4 Which Average? 65

      3.5 Averages for Qualitative and Ranked Data 68

      Summary 70

      Important Terms 70

      Key Equation 71

      Review Questions 71

      4 Describing Variability 75

      4.1 Intuitive Approach 76

      4.2 Range 78

      4.3 Variance 78

      4.4 Standard Deviation 79

      4.5 Details: Standard Deviation 84

      4.6 Degrees Of Freedom (df ) 92

      4.7 Interquartile Range (IQR) 94

      4.8 Measures of Variability for Qualitative and Ranked Data 95

      Summary 95

      Important Terms 96

      Key Equations 97

      Review Questions 97

      5 Normal Distributions and Standard (z) Scores 101

      5.1 The Normal Curve 103

      5.2 z Scores 105

      5.3 Standard Normal Curve 106

      5.4 Solving Normal Curve Problems 109

      5.5 Finding Proportions 110

      5.6 Finding Scores 116

      5.7 More About z Scores 121

      Summary 124

      Important Terms 125

      Key Equations 125

      Review Questions 125

      6 Describing Relationships: Correlation 131

      6.1 An Intuitive Approach 132

      6.2 Scatterplots 134

      6.3 A Correlation Coefficient for Quantitative Data: R 137

      6.4 Details: Computation Formula for r 142

      6.5 Outliers Again 144

      6.6 Other Types of Correlation Coefficients 145

      6.7 Computer Output 146

      Summary 149

      Important Terms and Symbols 150

      Key Equations 150

      Review Questions 151

      7 Regression 155

      7.1 Two Rough Predictions 156

      7.2 A Regression Line 157

      7.3 Least Squares Regression Line 159

      7.4 Standard Error of Estimate, sy

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