uno viruses typically cause common colds. In a test of the effectiveness of echinacea, 42 of the 48 bjects treated with echinacea developed rhinovirus infections. In a placebo group, 95 of the 111 subjects eveloped rhinovirus infections. Use a 0.05 significance level to test the claim that echinacea has an effect n thinovirus infections. Complete parts (a) through (c) below. dentify the test statistic. z = 0.32 (Round to two decimal places as needed.) Identify the P-value. P-value = 0.748 (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= 0.05, 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 95% confidence interval is< (P1- P2) < (Round to three decimal places as needed) clinic

uno viruses typically cause common colds. In a test of the effectiveness of echinacea, 42 of the 48 bjects treated with echinacea developed rhinovirus infections. In a placebo group, 95 of the 111 subjects eveloped rhinovirus infections. Use a 0.05 significance level to test the claim that echinacea has an effect n thinovirus infections. Complete parts (a) through (c) below. dentify the test statistic. z = 0.32 (Round to two decimal places as needed.) Identify the P-value. P-value = 0.748 (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= 0.05, 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 95% confidence interval is< (P1- P2) < (Round to three decimal places as needed) clinic

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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