ELEMENTARY STATISTICS: A STEP BY STEP APPROACH 5/E (A BRIEF VERSION)(IE)
1. Excel Technology Step by Step Boxes - These have been updated to reflect Excel 200 7.
2. Z tests and T tests - When σ or σ1, and σ2 are known, the Z tests are used in hypothesis testing. When σ or σ1, and σ2 are unknown, the T tests are used in hypothesis testing.
3. The Data Projects at the end of each chapter are all new and are specific to the areas of Business and Finance, Sports and Leisure, Technology, Health and Wellness, Politics and Economics, and The Classroom.
4. The answers in the answer appendix now include solutions based on the use of tables as well as solutions with answers derived from technology (calculator, Minitab, Excel, etc.) when there are discrepancies.
5. The cumulative standard normal distribution is used throughout the book.
