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
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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 alt="Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 42 of the 48
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.
Identify 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.)
clinical trial
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Clear all
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Transcribed Image Text:Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 42 of the 48
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.
Identify 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.)
clinical trial
Get more help-
Clear all
esc
%23
3
4.
W
e
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