10/27/2025
Return Exam 1 - my solutions are posted in the !Exam and Quiz Samples folder on Google Drive
One-way ANOVA Model
Balanced data
Unbalance data
Completely randomized design
Models
One-way Sum of Squares Identity
SSTO = SSTR + SSE
One-way ANOVA Table
Source of Variation
Sum of Squares
d.f.
Mean Square
F-Statistic
p-value
Treatments/Model (Between Groups)
SSTr
k-1
MSTr
MSTr/MSE
Error (Within Groups)
SSE
N-k
MSE
Total
SSTO
N-1
Checking conditions - same as before
Scope of Inference - see GoogleDrive\Stat206-DataAnalysis-F2025\2ePowerPoint\Sec 5.3R
Inference after ANOVA - see GoogleDrive\Stat206-DataAnalysis-F2025\2ePowerPoint\Sec 5.4R
Individual C.I.s
Multiple comparisons procedures
Examples with RStudio
See My Drive\!Class Material\4Exams.R - This is the example that is used in the PPT slides for Chapters 5 and 6
See GoogleDrive\Stat206-DataAnalysis-F2025\2eMarkkdown\Sec5.1.Rmd
See GoogleDrive\Stat206-DataAnalysis-F2025\2eMarkkdown\Sec5.2.Rmd
In class exercises
Exercise 5.24 (Turtles and habitat)
Exercise 5.29 (Child poverty)
Please complete your reading of Chapter 5 and read Sections 6.1-6.3 for class on Friday.