After ANOVA, assume that we want to do all the means in this case. Tukey Pairwise Comparisons: Grouping Inforr 95% Confidence Factor N Mean Grouping dept 3 6 5120 A
After ANOVA, assume that we want to do all the means in this case. Tukey Pairwise Comparisons: Grouping Inforr 95% Confidence Factor N Mean Grouping dept 3 6 5120 A
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question

Transcribed Image Text:After ANOVA, assume that we want to do all of the pairwise comparisons between
the means in this case.
Tukey Pairwise Comparisons: Grouping Information Using the Tukey Method and
95% Confidence
Factor N Mean Grouping
dept 3 6 5120 A
dept 2 6 3755 A
dept 16 1536
B
Means that do not share a letter are significantly different.
Using the Tukey Table above, describe what you learned about the pairwise
comparisons between means.
O mean dept 1 not = mean dept 3
O mean dept 2 not = mean dept 3
O all means are different
O mean dept 1 not = mean dept 2
%3D

Transcribed Image Text:We asked UST employees to tell us how many megabytes of memory (RAM) they
have on their computer. We would like to test to see if the mean amount of memory
is the same for three different academic departments. We have the memory
amounts for six faculty members' machines in the three departments shown below.
Dept. 1
Dept. 2 Dept.3
1
2048
4096 4096
1024
2048
4096
3.
1024
2048
8192
computer 4
2048
4096
8192
1024
2048
4096
2048
8192
2048
Here is the ANOVA table:
Source DF Adj SS
Adj MS
F-Value P-Value
Factor x 39263346 19631673 x.xX
0.025
Error xx 61691221 4112748
Total
XX 100954567
After ANOVA, assume that we want to do all of the pairwise comparisons between
the means in this case.
Tukey Pairwise Comparisons: Grouping Information Using the Tukey Method and
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