nengliangli523
26.07.2019 •
Mathematics
With which set of information can you construct a unique triangle
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Ответ:
Step-by-step explanation:
Given that in a randomized controlled trial in Kenya, insecticide treated bednets were tested as a way to reduce malaria. Among 343 infants using bednets, 15 developed malaria. Among 294 infants not using bednets, 27 developed malaria.
H0: p1=p2
H1: p1 <p2
(one tailed test)
p1 = 15/343:p2 =27/294:
Difference4.813 %
95% CI0.9160% to 9.0217%
Chi-squared5.947
DF 1
Significance levelP = 0.0073
Since p <0.01 we reject null hypothesis.