Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 34 of the 39 subjects treated w
Posted: Sun Jul 10, 2022 10:12 am
- Rhino Viruses Typically Cause Common Colds In A Test Of The Effectiveness Of Echinacea 34 Of The 39 Subjects Treated W 1 (163.42 KiB) Viewed 91 times
- Rhino Viruses Typically Cause Common Colds In A Test Of The Effectiveness Of Echinacea 34 Of The 39 Subjects Treated W 2 (87.08 KiB) Viewed 91 times
- Rhino Viruses Typically Cause Common Colds In A Test Of The Effectiveness Of Echinacea 34 Of The 39 Subjects Treated W 3 (169.27 KiB) Viewed 91 times
- Rhino Viruses Typically Cause Common Colds In A Test Of The Effectiveness Of Echinacea 34 Of The 39 Subjects Treated W 4 (136.54 KiB) Viewed 91 times
Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 34 of the 39 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 78 of the 93 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? OA. Ho: P1 P2 H₁: P₁ P2 O.D. Ho: P₁ P₂ H₁: P₁ P2 Identify the test statistic. Z= (Round to two decimal places as needed.) OB. Ho: P₁ P2 H₁: P1 P2 O E. Ho: P₁ H₁: P₁ P2 P2 OC. Ho: P1 P2 H₁: P₁ P2 OF. Ho: P₁ = P2 H₁: P₁ P2
Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 34 of the 39 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 78 of the 93 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. Identify the test statistic. Z= (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 = 0.01, so b. Test the claim by constructing an appropriate confidence interval. the null hypothesis. There sufficient evidence to support the claim that echinacea treatment has an effect.
Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 34 of the 39 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 78 of the 93 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. the significance level of a = 0.01, so b. Test the claim by constructing an appropriate confidence interval. The 99% confidence interval is (Round to three decimal places as needed.) What is the conclusion based on the confidence interval? The P-value is <(P₁-P₂) < 0, there the null hypothesis. There sufficient evidence to support the claim that echinacea treatment has an effect. Because the confidence interval limits has an effect. c. Based on the results, does echinacea appear to have any effect on the infection rate? appear to be a significant difference between the two proportions. There O A. Echinacea does not appear to have a significant effect on the infection rate. O B. Echinacea does appear to have a significant effect on the infection rate. There is evidence that it increases the infection rate. evidence to support the claim that echinacea treatment
Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 34 of the 39 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 78 of the 93 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. The 99% confidence interval is < (P₁-P₂) <UJ. (Round to three decimal places as needed.) What is the conclusion based on the confidence interval? Because the confidence interval limits has an effect. c. Based on the results, does echinacea appear to have any effect on the infection rate? ▼0, there (...) appear to be a significant difference between the two proportions. There OA. Echinacea does not appear to have a significant effect on the infection rate. O B. Echinacea does appear to have a significant effect on the infection rate. There is evidence that it increases the infection rate. OC. Echinacea does appear to have a significant effect on the infection rate. There is evidence that it lowers the infection rate. OD. The results are inconclusive. evidence to support the claim that echinacea treatment