Grupo I II n 27 24 X 5.5 3.5 S 3 2
An immunologist wants to compare two rabies vaccines. People who had previously received the vaccine were divided into two groups. The first group received a booster dose of type I vaccine and the second group received a booster dose of type II vaccine. Two weeks later the antibody level was measured. The average number of antibodies in each group appears in the following table: Do these data indicate that there is a difference in the effectiveness of the two vaccines used for booster doses? Assume a
What type of hypothesis test will allow us to reach a conclusion in the situation posed above?
A. Variance test
B. Unilateral for difference in proportions
C. Bilateral for average difference
D. Unilateral for change in effectiveness
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