Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 33 of the 40 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 82 of the 95 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. Identify the test statistic. N (Round to two decimal places as needed.) Identify the P-value P-value = (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? The P-value is the significance level of a = 0.05, so the null hypothesis. There sufficient evidence to support the claim that echinacea treatment has an effect. h. Test the claim by constructing an appropriate confidence interval Next