New Features:

• The division between the z and t distributions is handled differently in Chapter 9. The rule based on sample sizes (n greater than 30) to distinguish when to use either z or t is replaced by the more exact rule of using the z distribution when the standard deviation is known and the t distribution when it is unknown.
• Modified and reorganized Chapters 1 through 4 to set apart more clearly the procedures for each level of measurement
• The multiple regression treatment in Chapter 14 also includes an investigation of the theory behind the linear model along with tests for the violation of each assumption.
• The ANOVA chapter has been expanded to include interaction.
• Revised and expanded exercises are included in all chapters.
• Additional detail in the software sections has been added where appropriate.
• Straightforward –step-by-step presentation, supported by solved examples, self reviews, exercises and review sections-all combine to provide students a flexible dynamic learning tool.
• Larger data sets, with the files included on CD, and exercises aimed at using technology resources make this a practical and modern text. Realistic and relevant applications, optional computer and web-based exercises, and the wealth of resources on the Student CD provide Business students with a motivating, applied, learning experience.
• Color photos and design and hundreds of graphic illustrations provide attractive and unintimidating presentation for beginning undergraduate students.
• Excel, MegaStat, and Minitab are integrated throughout the text, in enough detail to support students.