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Exhibit 13-3 To test whether or not there is a difference between treatments A, B, and...

Exhibit 13-3
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 three treatments. You are given the results below.

Treatment Observation
A 20 30 25 33
B 22 26 20 28
C 40 30 28 22


The null hypothesis is to be tested at the 1% level of significance. The critical value from the table is _____.

a. 4.26

b. 8.02

c. 16.69

d. 99.39

Math   Statistics-And-Probability   
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