| Overall |
- Book reformatted for Pressbooks.
- Chapters were moved, combined, or separated.
- Sub-chapters were moved, combined, or separated, with some new sub-chapters added.
- Latex code updated throughout.
- Moved learning objectives from beginning of each chapter to appropriate sub-chapter
- Revised and updated learning objectives at the start of every sub-chapter.
- Revised and updated chapter and sub-chapter titles throughout.
- Revised, rewrote, and updated content throughout.
- Added instructions for using Excel throughout.
- Replaced all by-hand and graphing calculator solutions with Excel calculations and solutions.
- Added additional images and videos.
- End matter from each chapter was removed, except for exercises sub-chapter.
- Reformatted and renumbered exercises in exercise sub-chapters, with unnecessary exercises removed.
- Removed appendices.
- Removed collaborative exercises.
- Removed statistics lab activities from the end of each chapter.
- Added chapter on multiple regression.
|
| Chapter 1: Sampling and Data |
- Added definition of cumulative frequency and added cumulative frequency to example.
|
| Chapter 2: Descriptive Statistics |
- Removed sub-chapters on stem-and-leaf plots and box plots.
- Changed order of sub-chapters.
- Removed some examples and exercises.
- Added content on range.
- Removed formulas for finding percentiles manually.
- Changed the interpretation of percentiles and quartiles to “strictly less than”.
- Added an example to calculate multiple modes in Excel.
- Removed the content on the law of large numbers and the mean.
- Removed content on grouped standard deviation.
- Removed content on sampling variability of a statistic.
- Removed the explanation of the manual calculation of the standard deviation.
|
| Chapter 3: Probability |
- Replaced sub-chapters on independent and mutually exclusive events and two basic rules of probability with separate sub-chapters for the complement rule, the addition rule, conditional probability, and joint probabilities.
- Changed order of the sub-chapters.
- Added examples about sample space, outcomes, events, and probability.
- Added content about different approaches to probability.
- Moved content about complement, or, conditional, and joint probabilities to separate sub-chapters.
- Moved content on mutually exclusive and independent events to sub-chapters on the addition rule and conditional probability, respectively.
- Added image illustrating the complement.
- Added examples on using the complement.
- Added content on repeated trial experiments.
- Removed sub-chapter on trees and Venn diagrams.
|
| Chapter 4: Discrete Random Variables |
- Removed sub-chapters on geometric and hypergeometric distributions.
- Removed some examples and exercises.
- Updated the definition of binomial experiment.
- Removed the probability distribution notation.
- Added content about the mean and standard deviation of a Poisson distribution.
- Added additional examples and exercises for calculating binomial and Poisson probabilities.
|
| Chapter 5: Continuous Random Variables and the Normal Distribution |
- Combined chapters on Continuous Random Variables and the Normal Distribution.
- Removed sub-chapters on the uniform and exponential distributions.
- Removed the probability distribution notation.
- Removed references to probability density function.
- Moved the content on the Empirical rule to a different sub-chapter.
- Removed references to the standard normal distribution table.
- Removed some examples and exercises.
- Added additional examples and exercises for calculating normal probabilities.
- Added images of the normal distribution.
|
| Chapter 6: The Central Limit Theorem and Sampling Distributions |
- Removed sub-chapter on the central limit theorem for sums.
- Added new sub-chapter on the sampling distribution of the sample proportion.
- Moved content about distribution of the sample proportion from another chapter.
- Added content about binomial distribution for the distribution of the sample proportion.
- Updated notation for mean and standard deviation of the sample mean.
- Rewrote the description of the sampling distribution of the sample means and the central limit theorem.
- Removed some examples and exercises.
- Added additional examples and exercises for the sampling distributions.
- Removed sub-chapter on using the central limit theorem.
- Changed the notation for sample proportion.
|
| Chapter 7: Confidence Intervals for Single Population Parameters |
- Added images of normal and [latex]t[/latex]-distributions.
- Updated some of the notation.
- Added separate sub-chapter on finding the sample size and moved relevant content about finding the sample size from other sub-chapters.
- Removed content on working backwards to find the error or sample mean.
- Removed some examples and exercises.
- Added additional examples and exercises.
- Removed references to the [latex]t[/latex]-distribution table.
- Removed the probability distribution notation.
- Moved content about the distribution of the sample proportion to another chapter.
- Removed content on “plus four” confidence interval for proportions.
|
| Chapter 8: Hypothesis Tests for Single Population Parameters |
- Changed the null hypothesis to an :equal to”.
- Replaced sub-chapter on additional information and hypothesis test examples with three new sub-chapters on hypothesis tests for population means and population proportions.
- Moved content on hypothesis tests for means and hypothesis test for proportions to relevant new sub-chapters.
- Removed some examples and exercises.
- Added additional examples and exercises.
- Added steps to conduct a hypothesis test.
- Added images of normal and [latex]t[/latex]-distributions.
|
| Chapter 9: Statistical Inference for Two Population Parameters |
- Reorganized the content of the chapter.
- Added content on the distribution of the difference of the sample means and the distribution of the difference of the sample proportions.
- Added steps to conduct the hypothesis tests.
- Moved content about independent samples to a different sub-chapter.
- Added definition of matched samples.
- Added content on confidence intervals for the difference in two population parameters.
- Added images of normal and [latex]t[/latex]-distributions.
- Removed content on Cohen’s Effect size.
- Removed some examples and exercises.
- Added additional examples and exercises.
|
| Chapter 10: Statistical Inferences using the [latex]\chi^2[/latex]-Distribution |
- Reorganized the content of the chapter.
- Removed sub-chapters on test of homogeneity and comparison of the [latex]\chi^2[/latex] tests.
- Added images of [latex]\chi^2[/latex]-distributions.
- Removed some examples and exercises.
- Added additional examples and exercises.
- Added content on the distribution of the sample variance.
- Added steps to conduct the hypothesis tests.
- Added content on confidence intervals for population variance.
|
| Chapter 11: Statistical Inferences using the [latex]F[/latex]-Distribution |
- Reorganized the content of the chapter.
- Removed sub-chapter on the [latex]F[/latex]-distribution and the [latex]F[/latex]-ratio and moved content to sub-chapter on one-way ANOVA.
- Added images of [latex]F[/latex]-distributions.
- Removed some examples and exercises.
- Added additional examples and exercises.
- Added content on the distribution of the ratio of sample variances.
- Added content on confidence intervals for the ratio of population variances.
- Added steps to conduct the hypothesis tests.
|
| Chapter 12: Simple Linear Regression and Correlation |
- Removed sub-chapter on testing the significance of the correlation coefficient, prediction, and outliers.
- Reorganized the content of the chapter.
- Added sub-chapters on correlation, coefficient of determination, and standard error of the estimate.
- Removed some examples and exercises.
- Added additional examples and exercises.
- Added content on dependent and independent variables.
- Moved content on correlation into separate sub-chapter.
- Simplified discussion about the least squares method.
- Moved content on predictions into sub-chapter on the regression equation.
- Moved content on coefficient of determination into separate sub-chapter.
- Added content on standard error of the estimate.
|
| Chapter 13: Multiple Regression |
- Created this new chapter.
|
