A researcher uses an analysis of variance to test for mean differences among three treatments with a sample of n = 12 in each treatment. The F-ratio for this analysis would have which df values?
A) df = 2, 11
B) df = 2, 33
C) df = 2, 35
D) df = 2, 36
Question 2
There is a six-point difference between two sample means. If the two samples have the same variance, then which of the following values for the variance would make the mean difference easiest to see in a graph showing the two distributions.
A) s2 = 2
B) s2 = 8
C) s2 = 16
D) s2 = 64
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