Enjoy learning Statistics Online! Please be sure to share and subscribe to our YouTube channel.
ASK THE PROFESSOR FORUM
Course Documents
Chapter 1 - Intro
Chapter 2 - Methods for Describing Sets of Data
Chapter 3 - Probability
Chapter 4 - Discrete Random Variables
Chapter 5 - Normal Random Variables
Chapter 6 - Sampling Distributions
Chapter 7 - Confidence Intervals
Chapter 8 - Tests of Hypothesis: One Sample
Chapter 9 - Confidence Intervals and Hypothesis Tests: Two Samples
Sample Exam I: Chapters 1 & 2
Sample Exam II: Chapters 3 & 4
Sample Exam III: Chapters 5 & 6
Sample Exam IV: Chapters 7 & 8
Hello Professor,
I am having a hard time with Complete Factorial Design. Could you post an video explanation of problem number 10.84 on page 532 on the FIU Custom Statistics book? Thank you!
Posted to STATS 2 on Thursday, October 3, 2013 Replies: 2
Hi Javier,
I created a video for this problem for you. You wanted me to work out all of the sum of squares and that takes a while, so the video is long. I left out some of the details on comparing the test stats to the critical values because I assume you know how to do that from the other sections of chapter 10.
Just remember that we first test if there is a treatment effect (Ho: No difference among the ab treatment means). If we reject that null, then we test for an interaction effect (Ho: Factors A and B do not interact). If we reject that (i.e. we show there is an interaction effect), we do not need to test if A and B are significant separately. If you cannot show there is an interaction effect, then you would test A and B separately.
Hope the video helps,
Professor