Study Guides (234,279)
Canada (113,082)
Geography (218)
GGR270H1 (28)
Quiz

hypothesis testing

3 Pages
122 Views
Unlock Document

School
University of Toronto St. George
Department
Geography
Course
GGR270H1
Professor
Damian Dupuy
Semester
Fall

Description
Statistics Lecture November 16, 2011 • Non-parametric data: don’t have mean or standard deviation but you are dealing with how many things are in a category • Non-directional: there is a significant different between the sample and the population miu is not equal to xbar • Directional: xbar is significantly less than or greater than the population; xbar= > or < miu • Most important hypothesis testing error’s is a type one error Hypothesis testing- Test Selection • Test used is a function of the research question and research assumptions • Tests will vary according to the number of samples drawn, sampling design and scale of information • Ex. ttc might be testing how many people would ride the ttc before a fare increase and post increase to see how their riding patterns differ • One of the most common is the One-Sample Means test or One Sample Difference of Means Test • Is there a significant difference between the sample mean and the population mean • Should always have significant difference in the hypothesis and also state it in the conclusion • You will either be using the z test or the t test [less than 30 sample size] Z= xbar-miu s/sqroot of n t= xbar-miu s/sqroot of n-1 • Placing a probability statement on the likelihood of sampling error occurring • We usually select a fairly low significance level in order to avoid type 1 error [usually 0.05 or 0.01] • Conclusion of the test is expressed in terms of the level of significance of the result • In classic hypothesis testing, rejective the null hypothesis at .05 is the same as saying the statistical test is significant at the .05 level Hypothesis testing- Rejection regions • Selecting a significance level allows the regions of rejection and non-rejection of the null hypothesis • Entire set of values that a test statistic could assume • Regions of rejection can be directional or non-d
More Less

Related notes for GGR270H1

Log In


OR

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


OR

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.

Submit