'Pooled estimate' presentation slideshows

Comparing Populations

530 views • 52 slides

T-test for dependent Samples

269 views • 26 slides

Differences Between Group Means

Differences Between Group Means. (Click icon for audio). Differences between Groups when Comparing Means. Interval or ratio scaled variables t-test When groups are small When population standard deviation is unknown z-test When groups are large.

421 views • 25 slides

Independent Samples: Comparing Proportions

Independent Samples: Comparing Proportions. Lecture 41 Section 11.5 Tue, Apr 5, 2005. Comparing Proportions. We now wish to compare proportions between two populations. The populations should be similar in most respects. Ideally, they would differ in only one respect.

215 views • 21 slides

Comparing Means from Independent Samples

Comparing Means from Independent Samples. (Session 12). Learning Objectives. By the end of this session, you will be able to explain how means from two populations may be compared describe the assumptions associated with the independent samples t-test

383 views • 15 slides

Module 27 : Two Sample t-tests With Unequal Variances

Module 27 : Two Sample t-tests With Unequal Variances. This module shows how to test the hypothesis that two population means are equal when there is evidence that the requirement that the two populations have the same variance is not met. REVIEWED 19 July 05 /MODULE 27. The General Situation.

327 views • 15 slides

n(0,1)

47 views • 4 slides