'Large sample confidence intervals' diaporamas de présentation

Chapter 8

Chapter 8. Confidence Intervals Introduction Large Sample Confidence Intervals for a Population Mean Small Sample Confidence Intervals for a Population Mean Sample Size Determination Confidence Intervals for a Population Proportion. Introduction.

748 views • 42 slides

Confidence Intervals

515 views • 36 slides

Review: Large Sample Confidence Intervals

n >30 or so for means, np and n(1-p) both > 5 for proportions. Review: Large Sample Confidence Intervals. 1- a confidence interval for a mean: x +/- z a /2 s/sqrt(n) 1- a confidence interval for a proportion: p +/- z a /2 p(1-p)/sqrt(n)

432 views • 24 slides

Review: Large Sample Confidence Intervals

n >30 or so for means, np and n(1-p) both > 5 for proportions. Review: Large Sample Confidence Intervals. 1- a confidence interval for a mean: x +/- z a /2 s/sqrt(n) 1- a confidence interval for a proportion: p +/- z a /2 p(1-p)/sqrt(n)

253 views • 24 slides

309 views • 19 slides

479 views • 18 slides

186 views • 18 slides

Chapter 18 Inference about a Population Proportion

380 views • 16 slides

Chapter 18 Inference about a Population Proportion

166 views • 16 slides

Chapter 19

Chapter 19. Comparing Two Proportions. Outline. Two-sample problems: proportions The sampling distribution of a difference between proportions Large-sample confidence intervals for comparing proportions Significance tests for comparing proportions. 1. Two-sample problems: proportions.

283 views • 15 slides

CHAPTER 21: Comparing Two Proportions

CHAPTER 21: Comparing Two Proportions. Chapter 21 Concepts. Two-Sample Problems: Proportions The Sampling Distribution of a Difference Between Proportions Large-Sample Confidence Intervals for Comparing Proportions Accurate Confidence Intervals for Comparing Proportions

336 views • 15 slides