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Mathematics, 05.05.2020 17:41, kpgmfb
Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 37 of the 44 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 91 of the 104 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?
(b) Identify the test statistic.
(c) Identify the P-value.
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Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 37 of the 4...
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