A researcher wants to determine if having a visible tattoo can significantly lower the attractiveness rating of an individual. In the study, a sample of n = 5 looked at a set of 30 photographs and rated the attractiveness of each individual using a 10-point scale (10 = most attractive). One photograph appears twice in the set, once with a tattoo and once with the tattoo removed. The results are shown below. Use a repeated-measures ANOVA with a = 0.05 to determine whether the mean difference between treatments is significant. Fcrit = 9.60 Participant No Tattoo With Tattoo A 8 6 B 3 8 C 6 1 D 7 8 E 6 7 Source SS df MS F Between Treatments Within Treatments NA NA Between Subjects Error Total NA
A researcher wants to determine if having a visible tattoo can significantly lower the attractiveness rating of an individual. In the study, a sample of n = 5 looked at a set of 30 photographs and rated the attractiveness of each individual using a 10-point scale (10 = most attractive). One photograph appears twice in the set, once with a tattoo and once with the tattoo removed. The results are shown below. Use a repeated-measures ANOVA with a = 0.05 to determine whether the mean difference between treatments is significant. Fcrit = 9.60
Participant No Tattoo With Tattoo
A 8 6
B 3 8
C 6 1
D 7 8
E 6 7
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Source |
SS |
df |
MS |
F |
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Between Treatments |
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Within Treatments |
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NA |
NA |
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Between Subjects |
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Error |
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Total |
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NA |
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