Rhinoviruses typically cause common colds. In a test of the effectiveness of echinacea, 41of the 47 subjects treated with echinacea developed rhinovirus infections. In a placebo group,79 of the 95 subjects developed rhinovirus infections. Use a 0.01 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? Identify z = ______ Identify P value = _______ Identify the conclusion based on the hypothesis tests: The appropriate confidence level is _______ what is the conclusion based on the confidence interval what do the results suggest about the effect of the rhinovirus?
Rhinoviruses typically cause common colds. In a test of the effectiveness of echinacea, 41of the 47 subjects treated with echinacea developed rhinovirus infections. In a placebo group,79 of the 95 subjects developed rhinovirus infections. Use a 0.01 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? Identify z = ______ Identify P value = _______ Identify the conclusion based on the hypothesis tests: The appropriate confidence level is _______ what is the conclusion based on the confidence interval what do the results suggest about the effect of the rhinovirus?
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Rhinoviruses typically cause common colds. In a test of the effectiveness of echinacea, 41of the 47 subjects treated with echinacea developed rhinovirus infections. In a placebo group,79 of the 95 subjects developed rhinovirus infections. Use a 0.01 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?
Identify z = ______
Identify P value = _______
Identify the conclusion based on the hypothesis tests:
The appropriate confidence level is _______
what is the conclusion based on the confidence interval
what do the results suggest about the effect of the rhinovirus?
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