In a randomized controlled trial, insecticide-treated bednets were tested as a way to reduce malaria. Among 349 infants using bednets, 22 developed malaria. Among 257 infants not using bednets, 23 developed malaria. Use a 0.01 significance level to test the claim that the incidence of malaria is lower for infants using bednets. Do the bednets appear to be effective? Conduct the hypothesis test by using the results from the given display. Difference = p(1) - p(2) Estimate for difference: - 0.0264569 99% upper bound for difference: 0.03034574 Test for difference 0 (vs <0): Z= - 1.23 P-Value = 0.110 OD. Ho: P1 = P2 H: P, #P2 O F. Ho: P1 = P2 O E. Ho: P1 SP2 H: P1 > P2 H,: P1

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In a randomized controlled trial, insecticide-treated bednets were tested as a way to reduce malaria. Among 349 infants using bednets, 22 developed malaria. Among 257 infants not
using bednets, 23 developed malaria. Use a 0.01 significance level to test the claim that the incidence of malaria is lower for infants using bednets. Do the bednets appear to be
effective? Conduct the hypothesis test by using the results from the given display.
Difference = p(1)- p(2)
Estimate for difference: - 0.0264569
99% upper bound for difference: 0.03034574
Test for difference 0 (vs <0): Z = - 1.23 P-Value = 0.110
%3D
O D. Ho: P1 = P2
O E. Ho: P1 SP2
H1: P1 > P2
O F. Ho: P1 = P2
H,: P, <P2
H: P1 #P2
Identify the test statistic.
- 1.23
(Type an integer or decimal rounded to two decimal places as needed.)
Identify the P-value.
0.110
(Type an integer or decimal rounded to three decimal places as needed.)
What is the conclusion for this test?
The P-value is greater than the significance level a, so
reject
the null hypothesis. There is
evidence to support the claim that the incidence of malaria is lower
for infants using bednets. The bednets
to be effective.
Transcribed Image Text:In a randomized controlled trial, insecticide-treated bednets were tested as a way to reduce malaria. Among 349 infants using bednets, 22 developed malaria. Among 257 infants not using bednets, 23 developed malaria. Use a 0.01 significance level to test the claim that the incidence of malaria is lower for infants using bednets. Do the bednets appear to be effective? Conduct the hypothesis test by using the results from the given display. Difference = p(1)- p(2) Estimate for difference: - 0.0264569 99% upper bound for difference: 0.03034574 Test for difference 0 (vs <0): Z = - 1.23 P-Value = 0.110 %3D O D. Ho: P1 = P2 O E. Ho: P1 SP2 H1: P1 > P2 O F. Ho: P1 = P2 H,: P, <P2 H: P1 #P2 Identify the test statistic. - 1.23 (Type an integer or decimal rounded to two decimal places as needed.) Identify the P-value. 0.110 (Type an integer or decimal rounded to three decimal places as needed.) What is the conclusion for this test? The P-value is greater than the significance level a, so reject the null hypothesis. There is evidence to support the claim that the incidence of malaria is lower for infants using bednets. The bednets to be effective.
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