In an analysis of variance, the within-group population variance estimate is 8.5 and the between-group estimate is 5.3. What is the F ratio?
A) 5.3/8.5 = 0.62
B) 8.5/5.3 = 1.60
C) the square root of (5.3/8.5 ) = 0.79
D) the square root of (8.5/5.3 ) = 1.27
Answer: A
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