Take the following information and compute the Tukey’s HSD and determine where the mean differences are between the treatments. Assume an alpha α = .01
Source
SS
df
MS
F
Between
48
2
24
F = 35.82
Within
16
24
0.67
Total
64
26
M1 = 6 M2 = 5 M3 = 3
HSD =
M1 – M2
M1 – M3
M2 – M3
Which ones appear to be significantly different?
What is the calculated HSD for this scenario?
What is the mean difference between the mean of group 1 and group 3?
What is the mean difference between the mean of group 1 and group 2?
What is the mean difference between the mean of group 2 and group 3?
Which groups are significantly different from each other?
What is the “q” value used in this analysis?