A researcher assigns 21 adolescents to rate the likability of a person described in a vignette as having one of three personality traits. An equal number of participants are assigned to each group. If Fobt = 4.08 for this study, then what was the decision at a 0.05 level of significance for a one-way between-subjects ANOVA?
a. Reject the null hypothesis.
b. Retain the null hypothesis.
c. There is not enough information to answer this question.
Answer: A
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