[Step-by-Step] Nine subjects were randomly divided into three groups of three subjects each, and each group received a different treatment for statophobia.
Question: Nine subjects were randomly divided into three groups of three subjects each, and each group received a different treatment for statophobia. The number of panic attacks experienced by each subject is given below. Test whether the type of treatment makes a difference in the number of panic attacks. Use alpha level of .05 and a two-tailed test.
PLACEBO COGNITIVE GESTALT
10 5 5
8 6 7
9 7 6
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