POL101Y1 Lecture Notes - Analysis Of Variance, Null Hypothesis, Standard Deviation
11 Dec 2012
School
Department
Course
Professor
Document Summary
Last time we looked at 1 variable (indicator) 2 functions: estimate population parameter, hypothesis testing. Ultimately want to look at relationship between iv"s and dv. Environment: i would give part of my income if i were certain that the money would be used to prevent environmental pollution . Those that agree or strongly agree are our sample. Population of the left-right political spectrum survey question. Instead of looking at how a mean represents pop. Testing whether some mean is like the population. Assumes we know what the population looks like. By dividing by the standard deviation (s), we can compare anything (population or sam- ple) together because they will be standardized and comparable. 1. outline a null hypothesis (no difference/ relationship) and alternative. In almost every scenario there is no difference. In this case the sample mean l-r score (environmental concern) does not differ from the pop mean l-r score.
