Question

Wilfley and colleagues (2008) tested whether the antiobesity drug sibutramine would be an effective treatment for people with binge eating disorder. They measured the frequency of binge eating every 2 weeks for 24 weeks during treatment. The following table lists a portion of the data similar to results reported by the authors for the frequency of binge eating over the first 8 weeks of the drug treatment.

Frequency of Binge Eating
Baseline	Week 2	Week 4	Week 6	Week 8
4	1	0	0	1
6	4	2	0	0
3	0	1	1	0
1	1	0	1	1
2	2	1	1	1
5	1	2	2	2

(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

Answer 1

using excel two way anova without replication -

Anova: Two-Factor Without Replication
SUMMARY	Count	Sum	Average	Variance
4	4	2	0.5	0.333333333
6	4	6	1.5	3.666666667
3	4	2	0.5	0.333333333
1	4	3	0.75	0.25
2	4	5	1.25	0.25
5	4	7	1.75	0.25
Week 2	6	9	1.5	1.9
Week 4	6	6	1	0.8
Week 6	6	5	0.833333333	0.566666667
Week 8	6	5	0.833333333	0.566666667
ANOVA
Source of Variation	SS	df	MS	F	P-value	F crit
between persons	5.71	5.00	1.14	1.27	0.33	2.90
between groups	1.79	3.00	0.60	0.67	0.59	3.29
Error	13.46	15.00	0.90
Total	20.96	23.00