1. Independent Samples T-Tests 2. Another application of the t-tests is the independentsamples t-test. 3. An independent samples t-test evaluates whether twomeans from two…

Interval Estimate  An Point Estimate vs Interval Estimate interval estimate is an interval of numbers within which the parameter value is believed to fall. Point Estimation:…

Slide 1Introduction to the t Statistic Slide 2 What were the formulae used for the z statistic? z = (M – μ) / σ m z = (M – μ) / σ m σ m = σ/n σ m = σ/n σ = (SS/n)…

Slide 1Basic Concepts of Inference Corresponds to Chapter 6 of Tamhaneand Dunlop Slides prepared by Elizabeth Newton (MIT) with some slides by Jacqueline Telford (Johns Hopkins…

Slide 1Variation, uncertainties and models Marian Scott School of Mathematics and Statistics, University of Glasgow June 2012 Slide 2 the sample mean Perhaps the most commonly…

Slide 1SJS SDI_181 Design of Statistical Investigations 18 Sample Size Determination Stephen Senn Slide 2 SJS SDI_182 A Note About Terminology The term sample is best reserved…

Slide 1Chapter 3 Learning to Use Regression Analysis Copyright © 2011 Pearson Addison-Wesley. All rights reserved. Slides by Niels-Hugo Blunch Washington and Lee University…

Slide 1Inferential Statistics and t - tests ScWk 242 – Session 9 Slides Slide 2 Inferential Statistics Inferential statistics are used to test hypotheses about the relationship…

Slide 1Statistical Fundamentals: Using Microsoft Excel for Univariate and Bivariate Analysis Alfred P. Rovai Independent t-Test PowerPoint Prepared by Alfred P. Rovai Presentation…

Slide 1 Slide 2 GY2100 Geographical Data Analysis Lecture 4 Regression analysis and statistical inference DEPARTMENT OF GEOGRAPHY Slide 3 The statistical utility of a regression…