ABM: Concepts and Practice · Part A: Statistics

Chapter 6: Estimation and confidence

From one sample to a statement about everyone, with an honest margin of error attached: how surveys, audits and risk models report what they know.

Buyers of the e-book, or of the print copy, which includes it, read the whole chapter. Everyone can read the free sample, pages 1 to 24 of the e-book.

In this chapter

• 6.1Point and interval estimatesp. 73
• 6.2A confidence interval for a meanp. 74
• 6.3A confidence interval for a proportionp. 75
• 6.4How large a sample?p. 76
• 6.5From estimates to testsp. 77
• Exam traps and quick checksp. 78
• Practice: 16 questions in three roundsp. 79
• Answers, with every wrong option explainedp. 81
• Make it stickp. 83
• Chapter 6 on one pagep. 84

Corrections and updates

None for this chapter so far. Every correction to the book, and any rule that changes after its date, is listed on the errata page.