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Researchers in mental health fields are often interested in evaluating the effectiveness of using food images...

Researchers in mental health fields are often interested in evaluating the effectiveness of using food images to enhance positive mood. Adapting a typical design from such studies, suppose we have participants rate their mood change on a standard self-report affect scale after viewing images of "comfort" foods, fruits/vegetables (F/V), and random non-food images (used as a control group). The results are given in the table at right for this hypothetical study.

Images
Control F/V Comfort
Foods
0 0 3
0 1 2
1 2 3
3 2 5
0 1 0

(a) Complete the F-table. (Round your answers to two decimal places.)

Source of
Variation		 SS df MS Fobt
Between
groups
Between
persons
Within
groups (error)
Total
math   Statistics-And-Probability   
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Answer #1
Source of Variation SS df MS F
groups 8.93 2 4.47 5.58
persons 16.40 4 4.10 5.13
Error 6.40 8 0.80
Total 31.73 14
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