Question: 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?

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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