Class Notes (806,766)
Canada (492,430)
POL101Y1 (1,114)

POL 322 week 9 Lec

3 Pages
Unlock Document

University of Toronto St. George
Political Science
Michael Painter- Main

POL 322 week 9 Lec Nov 19, 2012 Bivariate Relationships -last time we looked at 1 variable (indicator) -ex. thermometer for supporting Steven Harper -how do we look at hypotheses testing using inferences? Inferences -2 functions: 1. estimate population parameter 2. hypothesis testing -ultimately want to look at relationship between IV’s and DV Univariate Hypothesis Testing -ex. class survey of left-right environmental concern -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 -would environmentalists be statistically significant;y different than the rest of our popu- lation? -population of the left-right political spectrum survey question -population L-R: 4.22 sample (environmentally concerned): 3.68 -do those concerned significantly differ than the population? -or is this just a function of the sample size we are using? T-Score of this 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 Process POL 322 week 9 Lec Nov 19, 2012 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 -alternative hypothesis is what we expect to see 2. examine the difference between sample and pop in standardized method, develop a T-Score -calculate T-Score -Pop (L-R): 4.22 -environment (L-R): 3.68 -environment (s): 2.03 -environment (number of cases): 67 -T= -2.16 (after whole calculation 3. find a critical T-Score -based on confidence level and degrees of freedom -based o
More Less

Related notes for POL101Y1

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.