Statistics All-in-One For Dummies

Unit 4

Guesstimating and Hypothesizing with Confidence

In This Unit …

1. Chapter 13: Leaving Room for a Margin of Error
   1. Seeing the Importance of that Plus or Minus
   2. Finding the Margin of Error: A General Formula
   3. Determining the Impact of Sample Size
   4. Practice Questions Answers and Explanations
   5. Whaddya Know? Chapter 13 Quiz
   6. Answers to Chapter 13 Quiz
2. Chapter 14: Confidence Intervals: Making Your Best Guesstimate
   1. Not All Estimates Are Created Equal
   2. Linking a Statistic to a Parameter
   3. Getting with the Jargon
   4. Interpreting Results with Confidence
   5. Zooming In on Width
   6. Choosing a Confidence Level
   7. Factoring In the Sample Size
   8. Counting On Population Variability
   9. Calculating a Confidence Interval for a Population Mean
   10. Figuring Out What Sample Size You Need
   11. Determining the Confidence Interval for One Population Proportion
   12. Creating a Confidence Interval for the Difference of Two Means
   13. Estimating the Difference of Two Proportions
   14. Spotting Misleading Confidence Intervals
   15. Practice Questions Answers and Explanations
   16. Whaddya Know? Chapter 14 Quiz
   17. Answers to Chapter 14 Quiz
3. Chapter 15: Claims, Tests, and Conclusions
   1. Setting Up the Hypotheses
   2. Gathering Good Evidence (Data)
   3. Compiling the Evidence: The Test Statistic
   4. Weighing the Evidence and Making Decisions: p-Values
   5. Making Conclusions
   6. Assessing the Chance of a Wrong Decision
   7. Practice Questions Answers and Explanations
   8. Whaddya Know? Chapter 15 Quiz
   9. Answers to Chapter 15 Quiz
4. Chapter 16: Commonly Used Hypothesis Tests: Formulas and Examples