In a clinical trial of a? vaccine, 10000 children were randomly divided into two groups. The...

In a clinical trial of a? vaccine, 10000 children were randomly divided into two groups. The subjects in group 1? (the experimental? group) were given the vaccine while the subjects in group 2? (the control? group) were given a placebo. Of the 5000 children in the experimental? group, 74 developed the disease. Of the 5000 children in the control? group, 107 developed the disease. Determine whether the proportion of subjects in the experimenta group who contracted the disease is less than the proportion of subjects in the control group who contracted the disease at the a = 0.01 level of significance.

Expert Solution

CONCLUSION :

It is concluded that the null hypothesis Ho is rejected. Therefore, there is enough evidence to claim that the proportion of subjects in the experimenta group who contracted the disease is less than the proportion of subjects in the control group who contracted the disease at the a = 0.01 level of significance.

orchestra answered 2 years ago

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