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There are 145 people in the first group and this group will be administered the new drug. There are 156 people in the second group
There are 145 people in the first group and this group will be administered the new drug. There are 156 people in the second group and this group wil be administered a placebo. After one year, 13% of the first group has a second episode and 16% of the second group has a second episode. Select a 95% confidence interval for the difference in true proportion of the two groups.
a)[-0.074, 0.134]
b)[-0.049, 0.109]
c)[-0.134, 0.074]
d)[-0.109, 0.049]
e)[-0.609, 0.549]
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