Premium

School

University of Guelph
Department

Statistics

Course Code

STAT 2050

Professor

Zeny Feng

Study Guide

Midterm

One Way ANOVA:

k = number of groups

i = group number;

j = number of samples in ith group (group size)

Yij follows a normal distribution

Assumptions:

Normal distribution for Yij

Distribution of Yij has common variance and equal variance

Observations are independent

5 steps:

1. Ho = all u’s equal; Ha = ot all u’s equal

2. State Alpha

3. F Test (F~FI-1,n-I under the null)

4. Interpret (e.g. Given Fobs > F*, we reject the Ho)

5. Conclusion (e.g. That is, there is strong evidence to suggest Group A > Group B)

Pairwise Test: Comparing two groups within an ANOVA

H0: mu2=mu3 vs HA: mu2 =/= mu3

If using CI, reject Ho if CI does not cover 0

CI=

Calculate variance, standard deviation using all groups (group pooled sd or variance)

(Continue until all groups are covered, not just the compared groups, and subtract by # of group)

Df still = n-1

Linear Combination

Gamma:

SE(Gamma):

H0: gamma = 0 vs Ha: gamma =/= 0

Number of pairs for comparison: Where I = number of groups

Standard Deviation:

find more resources at oneclass.com

find more resources at oneclass.com

Over 90% improved by at least one letter grade.

OneClass has been such a huge help in my studies at UofT especially since I am a transfer student. OneClass is the study buddy I never had before and definitely gives me the extra push to get from a B to an A!

Leah — University of Toronto

Balancing social life With academics can be difficult, that is why I'm so glad that OneClass is out there where I can find the top notes for all of my classes. Now I can be the all-star student I want to be.

Saarim — University of Michigan

As a college student living on a college budget, I love how easy it is to earn gift cards just by submitting my notes.

Jenna — University of Wisconsin

OneClass has allowed me to catch up with my most difficult course! #lifesaver

Anne — University of California

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?
Log in

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.