To test whether or not there is a difference between treatments A, B, and C, a sample of 12 observations has been randomly assigned to the 3 treatments. You are given the results below.
?
Treatment
Observations
A
20
30
25
33
B
22
26
20
28
C
40
30
28
22
?
The test statistic to test the null hypothesis equals
A. .944.
B. 1.06.
C. 3.13.
D. 19.231.
Answer: B
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