000			01847 a2200169 4500
020			_a9780140136326
082			_a519 _bROW
100			_aRowntree, Derek _929874
245			_aStatistics without tears : _ban introduction for non-mathematicians
260			_aNew Delhi _bPenguin Books India (P) Ltd. _c2000
300			_a195,xp.
505			_aCONTENTS Introduction 9 How to use this book 10 1.Statistical inquiry 13 Making sense of experience 14 What is statistics? 17 Descriptive and inferential statistics 19 Collecting a sample 23 2.Describing our sample 28 Statistical variables 28 Error, accuracy and approximations 35 3.Summarizing our data 38 Tables and diagrams 38 Central tendency {averages) 48 Measures of dispersion 50 4.The shape of a distribution 57 Skewed distributions 58 Introducing the normal distribution 64 Proportions under the normal curve 72 Comparing values 79 5.From sample to population 82 Estimates and inferences 82 The logic of sampling 86 A distribution of sample-means 87 Estimating the population-mean 94 Estimating other parameters 99 6.Comparing samples 102 From the same or different populations 102 Significance testing 107 The significance of significance 116 Comparing dispersions 122 Non-parametric methods 124 7.Further matters of significance 128 One- versus two-tailed tests 129 z-tests and t-tests 139 Comparing several means 141 Comparing proportions 15O 8.Analysing relationships 156 Paired values 156 Three kinds of correlation 160 The strength of a correlation 161 The significance of a correlation coefficient 164 Interpreting a correlation coefficient 169 Prediction and regression 176 Postscript 185 Review 186 Caution 188 Further Reading 191 Index 193
600			_944633
890			_aIndia
891			_aFT
942			_2ddc
999			_c42255 _d42255