Slide 1Research Methods Part 4 T- Statistics Partly based on material by Sherry O’Sullivan Slide 2 Revision General terms – Population – Sample – Parameter – Statistic…
Slide 1 Stat 217 – Day 18 t-procedures (Topics 19 and 20) Slide 2 Last Time – Sampling Distn for Mean Penny ages Population Sample (n = 30) Sampling distribution…
Lecture 6 Hypothesis Tests for Proportions & Two Populations Slides available from Statistics & SPSS page of www.gpryce.com Social Science Statistics Module I Gwilym…
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Power Point Presentation Underlying Assumptions In order to be able to use the formula Assumptions: Random sample from population - important! Observations in the sample…
Section 10.1 Confidence Intervals The Basics Confidence Intervals! A level C confidence level for a parameter is an interval computed from sample data by a method that has…