z test, p value, confidence interval and conclusion based on the confidence interval 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 usingbednets.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 P2H1: P1 < P2O B. Ho: P1 = P2H1: P1 < P2OC. Hg: P1 = P2H1: P1 # P2O D. Ho: P1 = P2H1: P1 > P2O E. Ho: P1 SP2H1: P1 > P2O F. Ho: P1 # P2H1: P1 = P2

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Answered: In a randomized controlled trial,…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section: Chapter Questions

Problem 8SGR

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In a survey funded by the UW school of medicine, 750 of 1000 adult Seattle residents said they did not believe they could come down with a sexually transmitted infection (STI). Construct a 95% confidence interval estimage of the proportion of adult Seattle residents who don't believe they can contract an STI. (Use a zz score of 1.96 for your computations.)
A study of 420,024 cell phone users found that 140 of them developed cancer of the brain or nervous system. Prior to this study of cell phone use, the rate of such cancer was found to be 0.0235%for those not using cell phones. Complete parts (a) and (b). a. Use the sample data to construct a 90% confidence interval estimate of the percentage of cell phone users who develop cancer of the brain or nervous system. b. Do cell phone users appear to have a rate of cancer of the brain or nervous system that is different from the rate of such cancer among those not using cell phones? Why or why not?
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In a randomized controlled trial, insecticide-treated bednets were tested as a way to reduce malaria. Among333 infants using bednets,13 developed malaria. Among 255 infants not using bednets, 23 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? Identify the test statistic. nothing (Round to two decimal places as needed.) Identify the P-value. nothing (Round to three decimal places as needed.) What is the conclusion for this test? Since the P-value is ▼ less than greater than the significance level alphaα, ▼ fail to reject reject the null hypothesis. b. Let the infants using bednets be sample 1 and let the infants not using bednets be…
A genetic experiment with peas resulted in one sample of offspring that consisted of 419 green peas and 159 yellow peas. a. Construct a 95% confidence interval to estimate the percentage of yellow peas b. It was expected that 25% of the offspring peas would be yellow. Given that percentage of offspring yellow peas is not 25%, do the results contradict expectations?
In a randomized controlled trial, insecticide-treated bednets were tested as a way to reduce malaria. Among 350 infants using bednets, 16 developed malaria. Among 265 infants not using bednets, 26 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 SP2 H1: P1 > P2 В. Но: Р1 2 Р2 H1: P1 P2 Identify the test statistic. (Round to two decimal places as needed.) Identify the P-value. (Round to three decimal places as needed.) What is the conclusion for this test? Since the P-value is the significance level a, the null hypothesis. b. Let the infants…
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? 1 P1 P2 11 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…
In a randomized controlled trial, insecticide-treated bednets were tested as a way to reduce malaria. Among 325 infants using bednets, 16 developed malaria. Among 295 infants not using bednets, 33 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? a. What are the pull and alternative hypotheses? Let the ants asing berhak berry and let the entants pot using bodnets be sample 2. Choose the correst hypotheses below. UA. HU 50. P₁ = P Identify the test statistis, -2.89 (Round to two decimal places as needed.) Identify the P-value. (Round to three decimal places as needed.) da. Pa Ho: P₁ = P₂ H₁: P₁ > P H₂0₂
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