5. In an ANOVA, you reject the null hypothesis when the Fratio is A) negative. B) much larger than 1. C) equal to the tscore. D) smaller than 1. 6. Joe conducts an ANOVA. If he rejected the null hypothesis, the most likely Fvalue of the following choices is: A) 0.64 B) 1.01 C) 4.57 D) -5.12 7. In the formula, E(M-GM)2/ dfBetween, "GM' is the A) general multiple. B) grand mean. C) group mean. D) group median. 8. In an ANOVA with a between-groups (Treatment) population variance estimate of 30 and a within -groups (Error) estimate of 25, the Fratio is A) 25/ (30-25) = 5.00 B) (30-25) / 30 = 0.17 C) 25 / 30 = 0.83 D) 30 / 25 = 1.20 9. The overall test of the significance of the difference among groups in an ANOVA is called A) an omnibus test. B) a planned comparison. C) an absolute contrast. D) a post-hoc test