In a randomized controlled trial, insecticide-treated bednets were tested as a way to reduce malaria. Among 324 infants using bednets, 15 developed malaria. Among 298 infants not using bednets, 27 developed malaria. Use a 0.05 significance level to test the claim that the incidence of malaria is lower for infants using bednets. a. Test the claim using a hypothesis test. b. Test the claim by constructing an appropriate confidence interval. c. Based on the results, do the bednets appear to be effective? a. What are the null and alternative hypotheses? Let the infants using bednets be sample 1 and let the infants not using bednets be sample 2. Choose the correct hypotheses below. O A. Ho: P12 P2 H1: P1 < P2 O B. Ho: P1 = P2 H1: P1 < P2 O C. Ho: P1 = P2 H1: P1 # P2 O D. Ho: P1 = P2 H1: P1 > P2 O E. Ho P1 SP2 H1: P1 > P2 O F. Ho: P1 # P2 H1: P1 = P2
In a randomized controlled trial, insecticide-treated bednets were tested as a way to reduce malaria. Among 324 infants using bednets, 15 developed malaria. Among 298 infants not using bednets, 27 developed malaria. Use a 0.05 significance level to test the claim that the incidence of malaria is lower for infants using bednets. a. Test the claim using a hypothesis test. b. Test the claim by constructing an appropriate confidence interval. c. Based on the results, do the bednets appear to be effective? a. What are the null and alternative hypotheses? Let the infants using bednets be sample 1 and let the infants not using bednets be sample 2. Choose the correct hypotheses below. O A. Ho: P12 P2 H1: P1 < P2 O B. Ho: P1 = P2 H1: P1 < P2 O C. Ho: P1 = P2 H1: P1 # P2 O D. Ho: P1 = P2 H1: P1 > P2 O E. Ho P1 SP2 H1: P1 > P2 O F. Ho: P1 # P2 H1: P1 = P2
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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z test, p value, confidence interval and conclusion based on the confidence interval
Transcribed Image Text:In a randomized controlled trial, insecticide-treated bednets were tested as a way to reduce malaria. Among 324 infants using bednets, 15 developed malaria.
Among 298 infants not using bednets, 27 developed malaria. Use a 0.05 significance level to test the claim that the incidence of malaria is lower for infants using
bednets.
a. Test the claim using a hypothesis test.
b. Test the claim by constructing an appropriate confidence interval.
c. Based on the results, do the bednets appear to be effective?
a. What are the null and alternative hypotheses?
Let the infants using bednets be sample 1 and let the infants not using bednets be sample 2. Choose the correct hypotheses below.
O A. Ho: P1 2 P2
H1: P1 < P2
O B. Ho: P1 = P2
H1: P1 < P2
OC. Hg: P1 = P2
H1: P1 # P2
O D. Ho: P1 = P2
H1: P1 > P2
O E. Ho: P1 SP2
H1: P1 > P2
O F. Ho: P1 # P2
H1: P1 = P2
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