Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 41 of the 46 subjects treated w

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Rhino Viruses Typically Cause Common Colds In A Test Of The Effectiveness Of Echinacea 41 Of The 46 Subjects Treated W 1 (54.24 KiB) Viewed 23 times

Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 41 of the 46 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 77 of the 92 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. H: P1 P2 M: PP2 M: P1 P2 D. Ho: P = P2 OE Ho: P = P2 OF. HOP, SP2 Hy: P1*P2 Hy: P <P2 HP4*P2 Identify the test statistio. z= 0.85 (Round to two decimal places as needed) Identify the P-value, P.Value = 0.395 (Round to three decimal places as needed) What is the conclusion based on the hypothesis test? The P-value is greater than the significance level of a= 0.01, so fail to reject the null hypothesis. There is not sufficient evidence to support the claim that echinacea treatment has an effect. b. Test the claim by constructing an appropriate confidence interval. The 99% confidence interval is (P1-P2) - (Round to three decimal places as needed.)