Introductory Statistics, Ninth Edition by Neil A. Weiss is an ideal textbook for introductory statistics classes that emphasize statistical reasoning and critical thinking. Suitable for a one- or two-semester course, the text offers comprehensive coverage with meticulous explanations to ease the learning process. It features over 1,000 data sets and more than 2,600 exercises, most using real data, fostering statistical literacy among students.

This edition introduces parallel presentation of critical-value and p-value approaches to hypothesis testing, providing both flexibility in focus and depth in comparison. Continuing the book’s tradition, it remains at the cutting edge of statistical pedagogy, technology, and data analysis, incorporating hundreds of new and updated exercises with real-world data from various sources.

Datasets and additional resources are available for this edition.