If 50 of the cases fall above a given point, then 50 must also fall
a. below that point
b. between the mean and median
c. between the first and fifth deciles
d. none of these, since the distribution can never account for 100 of the cases
Question 2
The overall test of the significance of the difference among groups in an analysis of variance is called
A) an omnibus test.
B) a planned comparison.
C) an absolute contrast.
D) a post-hoc test.