In a randomized controlled trial, insecticide-treated bednets were tested as a way to reduce malaria. Among 309 infants using bednets, 12 developed malaria. Among 298 infants not using bednets, 35 developed malaria. Use a 0.01 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? 11. P1 P2 1 P1 P2 11 P1 P2 D. Ho P1 P2 H₁: P1 P2 OE. Ho: P1 P2 H₁: P1 P2 OF. Ho P1 P2 H₁: P1 P2 Identify the test statistic. -3.62 (Round to two decimal places as needed.) Identify the P-value. 0.000 (Round to three decimal places as needed.) What is the conclusion for this test? Since the P-value is less than the significance level α, reject the null hypothesis. b. Let the infants using bednets be sample 1 and let the infants not using bednets be sample 2. Use a 0.01 significance level to construct a confidence interval. <(P1-P2)< (Round to three decimal places as needed.)
In a randomized controlled trial, insecticide-treated bednets were tested as a way to reduce malaria. Among 309 infants using bednets, 12 developed malaria. Among 298 infants not using bednets, 35 developed malaria. Use a 0.01 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? 11. P1 P2 1 P1 P2 11 P1 P2 D. Ho P1 P2 H₁: P1 P2 OE. Ho: P1 P2 H₁: P1 P2 OF. Ho P1 P2 H₁: P1 P2 Identify the test statistic. -3.62 (Round to two decimal places as needed.) Identify the P-value. 0.000 (Round to three decimal places as needed.) What is the conclusion for this test? Since the P-value is less than the significance level α, reject the null hypothesis. b. Let the infants using bednets be sample 1 and let the infants not using bednets be sample 2. Use a 0.01 significance level to construct a confidence interval. <(P1-P2)< (Round to three decimal places as needed.)
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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VIEWStep 2: Determine hypotheses
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VIEWStep 4: Calculate test statistic
VIEWStep 5: Calculate p-value
VIEWStep 6: Determine decision and conclusion
VIEWStep 7: Calculate Z value for confidence interval
VIEWStep 8: Calculate Margin of error and confidence interval
VIEWStep 9: Determine decision
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