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MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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How to compute the sm of squares between groups with 3 treatments. #2 question

Transcribed Image Text:LEARNING CHECK!
1. ANOVA is a statistical procedure that compares two or more treatmen
conditions for differences in variane? ( True or False)
2. Calculate SST, SSB, and SSw for the following set of data:
Treatment 1 Treatment 2 Treatment 3
n = 10
T= 10
= 10
T = 20
n = 10
T = 30
N = 30
G = 60
n
%3D
%3D
%3D
%3D
%3D
%3D
SS = 27
SS = 16
SS = 23
Σχ? - 206
%3D
%3D
3. You are assigned to run a study comparing a new medication (X = 17.47, n =19),
an existing medication (X = 17.94, n= 18), and a placebo (X = 13.70, n= 20), with
higher scores reflecting better outcomes. Use SSB = 210.10 and SSw= 133.90 to test
%3D
%3D
%3D
%3D
%3D
for differences.
4. What is the purpose of post hoc tests?
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