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| What Is Statistics? | p. 1 |
| Introduction | p. 2 |
| Why Study Statistics? | p. 2 |
| What Is Meant by Statistics? | p. 4 |
| Types of Statistics | p. 6 |
| Descriptive Statistics | p. 6 |
| Inferential Statistics | p. 7 |
| Types of Variables | p. 9 |
| Levels of Measurement | p. 9 |
| Nominal-Level Data | p. 10 |
| Ordinal-Level Data | ... MORE |
| Interval-Level Data | p. 12 |
| Ratio-Level Data | p. 12 |
| Exercises | p. 14 |
| Statistics, Graphics, and Ethics | p. 15 |
| Misleading Statistics | p. 15 |
| Association Does Not Necessarily Imply Causation | p. 15 |
| Graphs Can Be Misleading | p. 16 |
| Become a Better Consumer and a Better Producer of Information | p. 17 |
| Ethics | p. 17 |
| Software Applications | p. 18 |
| Chapter Outline | p. 19 |
| Chapter Exercises | p. 19 |
| exercises.com | p. 20 |
| Dataset Exercises | p. 21 |
| Answers to Self-Review | p. 22 |
| Describing Data: Frequency Distributions and Graphic Presentation | p. 23 |
| Introduction | p. 24 |
| Constructing a Frequency Distribution | p. 25 |
| Class Intervals and Class Midpoints | p. 29 |
| A Software Example | p. 29 |
| Relative Frequency Distribution | p. 30 |
| Exercises | p. 31 |
| Graphic Presentation of a Frequency Distribution | p. 32 |
| Histogram | p. 32 |
| Frequency Polygon | p. 34 |
| Exercises | p. 37 |
| Cumulative Frequency Distributions | p. 38 |
| Exercises | p. 41 |
| Other Graphic Presentations of Data | p. 42 |
| Line Graphs | p. 42 |
| Bar Charts | p. 43 |
| Pie Charts | p. 44 |
| Exercises | p. 46 |
| Chapter Outline | p. 47 |
| Chapter Exercises | p. 48 |
| exercises.com | p. 53 |
| Dataset Exercises | p. 53 |
| Software Commands | p. 54 |
| Answers to Self-Review | p. 56 |
| Describing Data: Numerical Measures | p. 57 |
| Introduction | p. 58 |
| The Population Mean | p. 59 |
| The Sample Mean | p. 60 |
| Properties of the Arithmetic Mean | p. 61 |
| Exercises | p. 62 |
| The Weighted Mean | p. 63 |
| Exercises | p. 64 |
| The Median | p. 64 |
| The Mode | p. 65 |
| Exercises | p. 67 |
| Software Solution | p. 68 |
| The Relative Positions of the Mean, Median, and Mode | p. 68 |
| Exercises | p. 70 |
| The Geometric Mean | p. 71 |
| Exercises | p. 72 |
| Why Study Dispersion? | p. 73 |
| Measures of Dispersion | p. 74 |
| Range | p. 74 |
| Mean Deviation | p. 75 |
| Exercises | p. 76 |
| Variance and Standard Deviation | p. 77 |
| Exercises | p. 79 |
| Software Solution | p. 80 |
| Exercises | p. 81 |
| Interpretation and Uses of the Standard Deviation | p. 82 |
| Chebyshev's Theorem | p. 82 |
| The Empirical Rule | p. 83 |
| Exercises | p. 84 |
| Chapter Outline | p. 84 |
| Pronunciation Key | p. 86 |
| Chapter Exercises | p. 86 |
| exercises.com | p. 89 |
| Dataset Exercises | p. 90 |
| Software Commands | p. 90 |
| Answers to Self-Review | p. 92 |
| Describing Data: Displaying and Exploring Data | p. 93 |
| Introduction | p. 94 |
| Dot Plots | p. 94 |
| Exercises | p. 96 |
| Quartiles, Deciles, and Percentiles | p. 97 |
| Exercises | p. 100 |
| Box Plots | p. 100 |
| Exercises | p. 102 |
| Skewness | p. 103 |
| Exercises | p. 107 |
| Describing the Relationship between Two Variables | p. 107 |
| Exercises | p. 110 |
| Chapter Outline | p. 112 |
| Pronunciation Key | p. 112 |
| Chapter Exercises | p. 112 |
| exercises.com | p. 116 |
| Dataset Exercises | p. 116 |
| Software Commands | p. 117 |
| Answers to Self-Review | p. 119 |
| A Survey of Probability Concepts | p. 120 |
| Introduction | p. 121 |
| What Is a Probability? | p. 122 |
| Approaches to Assigning Probabilities | p. 124 |
| Classical Probability | p. 124 |
| Empirical Probability | p. 125 |
| Subjective Probability | p. 126 |
| Exercises | p. 127 |
| Some Rules for Computing Probabilities | p. 128 |
| Rules of Addition | p. 128 |
| Exercises | p. 133 |
| Rules of Multiplication | p. 134 |
| Contingency Tables | p. 137 |
| Tree Diagrams | p. 139 |
| Exercises | p. 141 |
| Principles of Counting | p. 142 |
| The Multiplication Formula | p. 142 |
| The Permutation Formula | p. 143 |
| The Combination Formula | p. 145 |
| Exercises | p. 146 |
| Chapter Outline | p. 147 |
| Pronunciation Key | p. 148 |
| Chapter Exercises | p. 148 |
| exercises.com | p. 152 |
| Dataset Exercises | p. 152 |
| Software Commands | p. 153 |
| Answers to Self-Review | p. 154 |
| Discrete Probability Distributions | p. 156 |
| Introduction | p. 157 |
| What Is a Probability Distribution? | p. 157 |
| Random Variables | p. 159 |
| Discrete Random Variable | p. 159 |
| Continuous Random Variable | p. 160 |
| The Mean, Variance, and Standard Deviation of a Probability Distribution | p. 160 |
| Mean | p. 160 |
| Variance and Standard Distribution | p. 161 |
| Exercises | p. 163 |
| Binomial Probability Distribution | p. 164 |
| How Is a Binomial Probability Distribution Computed | p. 165 |
| Binomial Probability Tables | p. 167 |
| Exercises | p. 170 |
| Cumulative Binomial Probability Distributions | p. 172 |
| Exercises | p. 173 |
| Poisson Probability Distribution | p. 174 |
| Exercises | p. 177 |
| Chapter Outline | p. 177 |
| Chapter Exercises | p. 178 |
| Dataset Exercises | p. 182 |
| Software Commands | p. 182 |
| Answers to Self-Review | p. 184 |
| Continuous Probability Distributions | p. 185 |
| Introduction | p. 186 |
| The Family of Uniform Distributions | p. 186 |
| Exercises | p. 189 |
| The Family of Normal Probability Distributions | p. 190 |
| The Standard Normal Distribution | p. 193 |
| The Empirical Rule | p. 195 |
| Exercises | p. 196 |
| Finding Areas under the Normal Curve | p. 197 |
| Exercises | p. 199 |
| Exercises | p. 202 |
| Exercises | p. 204 |
| Chapter Outline | p. 204 |
| Chapter Exercises | p. 205 |
| Dataset Exercises | p. 208 |
| Software Commands | p. 209 |
| Answers to Self-Review | p. 210 |
| Sampling Methods and the Central Limit Theorem | p. 211 |
| Introduction | p. 212 |
| Sampling Methods | p. 212 |
| Reasons to Sample | p. 212 |
| Simple Random Sampling | p. 213 |
| Systematic Random Sampling | p. 216 |
| Stratified Random Sampling | p. 216 |
| Cluster Sampling | p. 217 |
| Exercises | p. 218 |
| Sampling "Error" | p. 220 |
| Sampling Distribution of the Sample Mean | p. 222 |
| Exercises | p. 225 |
| The Central Limit Theorem | p. 226 |
| Exercises | p. 232 |
| Using the Sampling Distribution of the Sample Mean | p. 233 |
| Exercises | p. 237 |
| Chapter Outline | p. 237 |
| Pronunciation Key | p. 238 |
| Chapter Exercises | p. 238 |
| exercises.com | p. 242 |
| Dataset Exercises | p. 243 |
| Software Commands | p. 243 |
| Answers to Self-Review | p. 244 |
| Estimation and Confidence Intervals | p. 245 |
| Introduction | p. 246 |
| Point Estimates and Confidence Intervals | p. 246 |
| Known [sigma] or a Large Sample | p. 246 |
| A Computer Simulation | p. 251 |
| Exercises | p. 253 |
| Unknown Population Standard Deviation and a Small Sample | p. 254 |
| Exercises | p. 260 |
| A Confidence Interval for a Proportion | p. 260 |
| Exercises | p. 263 |
| Finite-Population Correction Factor | p. 263 |
| Exercises | p. 264 |
| Choosing an Appropriate Sample Size | p. 265 |
| Exercises | p. 267 |
| Chapter Outline | p. 268 |
| Pronunciation Key | p. 269 |
| Chapter Exercises | p. 269 |
| exercises.com | p. 272 |
| Dataset Exercises | p. 273 |
| Software Commands | p. 273 |
| Answers to Self-Review | p. 275 |
| One-Sample Tests of Hypothesis | p. 276 |
| Introduction | p. 277 |
| What Is a Hypothesis? | p. 277 |
| What Is Hypothesis Testing? | p. 278 |
| Five-Step Procedure for Testing a Hypothesis | p. 278 |
| State the Null Hypothesis (H[subscript 0]) and the Alternate Hypothesis (H[subscript 1]) | p. 278 |
| Select a Level of Significance | p. 279 |
| Select the Test Statistic | p. 279 |
| Formulate the Decision Rule | p. 281 |
| Make a Decision | p. 282 |
| One-Tailed and Two-Tailed Tests of Significance | p. 283 |
| Testing for a Population Mean with a Known Population Standard Deviation | p. 284 |
| A Two-Tailed Test | p. 284 |
| A One-Tailed Test | p. 288 |
| p-Value in Hypothesis Testing | p. 288 |
| Testing for a Population Mean: Large Sample, Population Standard Deviation Unknown | p. 290 |
| Exercises | p. 291 |
| Tests Concerning Proportions | p. 292 |
| Exercises | p. 295 |
| Testing for a Population Mean: Small Sample, Population Standard Deviation Unknown | p. 295 |
| Exercises | p. 300 |
| A Software Solution | p. 301 |
| Exercises | p. 303 |
| Chapter Outline | p. 304 |
| Pronunciation Key | p. 305 |
| Chapter Exercises | p. 305 |
| exercises.com | p. 309 |
| Dataset Exercises | p. 309 |
| Software Commands | p. 310 |
| Answers to Self-Review | p. 311 |
| Two-Sample Tests of Hypothesis | p. 312 |
| Introduction | p. 313 |
| Two-Sample Tests of Hypothesis: Independent Samples | p. 313 |
| Exercises | p. 318 |
| Two-Sample Tests about Proportions | p. 319 |
| Exercises | p. 321 |
| Comparing Population Means with Small Samples | p. 323 |
| Exercises | p. 326 |
| Two-Sample Tests of Hypothesis: Dependent Samples | p. 327 |
| Comparing Dependent and Independent Samples | p. 331 |
| Exercises | p. 333 |
| Chapter Outline | p. 334 |
| Pronunciation Key | p. 335 |
| Chapter Exercises | p. 335 |
| exercises.com | p. 340 |
| Dataset Exercises | p. 341 |
| Software Commands | p. 341 |
| Answers to Self-Review | p. 342 |
| Analysis of Variance | p. 344 |
| Introduction | p. 345 |
| The F Distribution | p. 345 |
| Comparing Two Population Variances | p. 346 |
| Exercises | p. 349 |
| ANOVA Assumptions | p. 350 |
| The ANOVA Test | p. 352 |
| Exercises | p. 359 |
| Inferences about Pairs of Treatment Means | p. 360 |
| Exercises | p. 362 |
| Chapter Outline | p. 364 |
| Pronunciation Key | p. 365 |
| Chapter Exercises | p. 365 |
| exercises.com | p. 370 |
| Dataset Exercises | p. 370 |
| Software Commands | p. 371 |
| Answers to Self-Review | p. 373 |
| Linear Regression and Correlation | p. 374 |
| Introduction | p. 375 |
| What Is Correlation Analysis? | p. 375 |
| The Coefficient of Correlation | p. 377 |
| The Coefficient of Determination | p. 381 |
| Correlation and Cause | p. 382 |
| Exercises | p. 382 |
| Testing the Significance of the Correlation Coefficient | p. 384 |
| Exercises | p. 386 |
| Regression Analysis | p. 386 |
| Least Squares Principle | p. 386 |
| Drawing the Line of Regression | p. 389 |
| Exercises | p. 390 |
| The Standard Error of Estimate | p. 392 |
| Assumptions Underlying Linear Regression | p. 395 |
| Exercises | p. 396 |
| Confidence and Prediction Intervals | p. 396 |
| Exercises | p. 400 |
| More on the Coefficient of Determination | p. 400 |
| Exercises | p. 403 |
| The Relationships among the Coefficient of Correlation, the Coefficient of Determination, and the Standard Error of Estimate | p. 403 |
| Transforming Data | p. 405 |
| Exercises | p. 407 |
| Chapter Outline | p. 408 |
| Pronunciation Key | p. 410 |
| Chapter Exercises | p. 410 |
| exercises.com | p. 417 |
| Dataset Exercises | p. 417 |
| Software Commands | p. 418 |
| Answers to Self-Review | p. 420 |
| Multiple Regression and Correlation Analysis | p. 421 |
| Introduction | p. 422 |
| Multiple Regression Analysis | p. 422 |
| Inferences in Multiple Linear Regression | p. 423 |
| Exercises | p. 426 |
| Multiple Standard Error of Estimate | p. 428 |
| Assumptions about Multiple Regression and Correlation | p. 429 |
| The ANOVA Table | p. 430 |
| Exercises | p. 432 |
| Evaluating the Regression Equation | p. 432 |
| Using a Scatter Diagram | p. 432 |
| Correlation Matrix | p. 433 |
| Global Test: Testing the Multiple Regression Model | p. 434 |
| Evaluating Individual Regression Coefficients | p. 436 |
| Qualitative Independent Variables | p. 439 |
| Exercises | p. 441 |
| Analysis of Residuals | p. 442 |
| Chapter Outline | p. 447 |
| Pronunciation Key | p. 448 |
| Chapter Exercises | p. 448 |
| exercises.com | p. 459 |
| Dataset Exercises | p. 460 |
| Software Commands | p. 461 |
| Answers to Self-Review | p. 463 |
| Chi-Square Applications | p. 464 |
| Introduction | p. 464 |
| Goodness-of-Fit Test: Equal Expected Frequencies | p. 465 |
| Exercises | p. 470 |
| Goodness-of-Fit Test: Unequal Expected Frequencies | p. 471 |
| Limitations of Chi-Square | p. 473 |
| Exercises | p. 475 |
| Contingency Table Analysis | p. 746 |
| Exercises | p. 450 |
| Chapter Outline | p. 481 |
| Pronunciation Key | p. 481 |
| Chapter Exercises | p. 482 |
| exercises.com | p. 484 |
| Dataset Exercises | p. 485 |
| Software Commands | p. 486 |
| Answers to Self-Review | p. 487 |
| CD Chapters | |
| Statistical Quality Control | |
| Time Series and Forecasting | |
| Appendixes | |
| Tables | |
| Binomial Probability Distribution | p. 489 |
| Critical Values of Chi-Square | p. 494 |
| Poisson Distribution | p. 495 |
| Areas under the Normal Curve | p. 496 |
| Table of Random Numbers | p. 497 |
| Student's t Distribution | p. 498 |
| Critical Values of the F Distribution | p. 499 |
| Wilcoxon T Values | p. 501 |
| Factors for Control Charts | p. 502 |
| Datasets | |
| Real Estate | p. 503 |
| Major League Baseball | p. 506 |
| Wages and Wage Earners | p. 508 |
| CIA International Economic and Demographic Data | p. 512 |
| Whitner Autoplex | p. 515 |
| Getting Started with Megastat | p. 516 |
| Visual Statistics | p. 520 |
| Answers to Odd-Numbered Exercises | p. 525 |
| Photo Credits | p. 552 |
| Index | p. 553 |
| Table of Contents provided by Ingram. All Rights Reserved. |