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Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 31 of the 38 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 96 of the 112 subjects developed rhinovirus infections. Use a 0.05 significance level to test the claim that echinacea has an effect on rhinovirus infections. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of subjects treated with echinacea and the second sample to be the sample of subjects treated with a placebo. What are the null and alternative hypotheses for the hypothesis test? A. Ho: P₁ #P2 H₁: P1 P2 D. Ho: P₁ = P2 H₁: P1 P2 Identify the test statistic. z= (Round to two decimal places as needed.) B. Ho: P₁ SP2 H₁: P1 P2 E. Ho: P₁ =P2 H₁: P1 P2 C. Ho: P₁≥P2 H₁: P1 P2 F. Ho: P1 P2 H₁: P1 P2

Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 31 of the 38 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 96 of the 112 subjects developed rhinovirus infections. Use a 0.05 significance level to test the claim that echinacea has an effect on rhinovirus infections. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of subjects treated with echinacea and the second sample to be the sample of subjects treated with a placebo. What are the null and alternative hypotheses for the hypothesis test? A. Ho: P₁ #P2 H₁: P1 P2 D. Ho: P₁ = P2 H₁: P1 P2 Identify the test statistic. z= (Round to two decimal places as needed.) B. Ho: P₁ SP2 H₁: P1 P2 E. Ho: P₁ =P2 H₁: P1 P2 C. Ho: P₁≥P2 H₁: P1 P2 F. Ho: P1 P2 H₁: P1 P2

MATLAB: An Introduction with Applications
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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Need help finding test statistic, p-value, and confidence interval, please. Thank you very much!

Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 31 of the 38 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 96 of the 112 subjects developed rhinovirus infections. Use a 0.05 significance level to test the claim that echinacea has an effect on rhinovirus infections. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of subjects treated with echinacea and the second sample to be the sample of subjects treated with a placebo. What are the null and alternative hypotheses for the hypothesis test? A. Ho: P₁ #P2 H₁: P1 P2 D. Ho: P₁ = P2 H₁: P1 P2 Identify the test statistic. z= (Round to two decimal places as needed.) B. Ho: P₁ SP2 H₁: P1 P2 E. Ho: P₁ =P2 H₁: P1 P2 C. Ho: P₁≥P2 H₁: P1 P2 F. Ho: P1 P2 H₁: P1 P2
Transcribed Image Text:Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 31 of the 38 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 96 of the 112 subjects developed rhinovirus infections. Use a 0.05 significance level to test the claim that echinacea has an effect on rhinovirus infections. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of subjects treated with echinacea and the second sample to be the sample of subjects treated with a placebo. What are the null and alternative hypotheses for the hypothesis test? A. Ho: P₁ #P2 H₁: P1 P2 D. Ho: P₁ = P2 H₁: P1 P2 Identify the test statistic. z= (Round to two decimal places as needed.) B. Ho: P₁ SP2 H₁: P1 P2 E. Ho: P₁ =P2 H₁: P1 P2 C. Ho: P₁≥P2 H₁: P1 P2 F. Ho: P1 P2 H₁: P1 P2
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