A researcher at an alcohol treatment center conducts a study of client satisfactionwith treatment methods A, B, and C. The researcher randomly assigns each of theavailable 10 clients to receive one of these treatments; four clients end up withTreatment A, three with Treatment B, and three with Treatment C. Two weeks later,the researcher measures client satisfaction with the three treatments on a scale from1 (low satisfaction) to 20 (high satisfaction). Scores for Treatment A were 8, 13, 10,and 9. Scores for Treatment B were 7, 3, and 8. Scores for Treatment C were 6, 4,and 2. Use the steps of hypothesis testing and figure an analysis of variance (at the.05 level) using the structural model method.

What is the GM?

Thedf_total=

Thedf_within=

Thedf_betwen=

A. 2 ; 7 ; 9

B. 9 ; 2 ; 7

C. 9 ; 7 ; 2

D. 7 ; 9 ; 2

What is the cutoff score?

4.35

4.74

19.33

9.55

8.45

What is the sample's score on the comparison distribution?

F = 33 / 5.14

F = 2 / 7

F = 7 / 2

F = 66 / 33

F = 102 / 5.14

F = 5.14 / 33

F = 36 / 7

planned comparison between Treatment B and C.What is the calculated F-ratio?

5

6

5.14

1.17