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identify p value=B. Test the claim by construction and appropriate confidence intervalC. based on the results, does echinacea appear to have any affect on the

identify p value=B. Test the claim by construction and appropriate confidence intervalC. based on the results, does echinacea appear to have any affect on the infection rate?

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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, 95 of the 111 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? O C. Ho: P1 = P2 O A. Ho: P1 SP2 OB. HO: P1 # P2 H1 : P1 P2 WER Hy : P1 # P2 Hy : P1 # P2 Identify the test statistic. Z= (Round to two decimal places as needed.)

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