Essay
Migraine Treatments
The following data were generated from a 2 × 2 factorial experiment with 3 replicates,where factor A levels represent two different injection procedures of an anesthetic to the occipital nerve (located in the back of the neck),and factor B levels represent two different drugs,which physicians recommend to increase the effectiveness of the injections.Three migraine patients were randomly selected for each combination of injection and drug. 
-{Migraine Treatments Narrative} Test at the 5% significance level to determine if differences exist among the levels of factor B.
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H0: No difference among the means of the ...View Answer
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