Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 35 of the 42 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 86 of the 100 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. (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? V the null hypothesis. There V sufficient evidence to support the claim that The P-value is V the significance level of a = 0.01, so echinacea treatment has an effect. is not b. Test the clainm by constructing an appropriate confidence interval. is The 99% confidence interval is <(P1-P2)

Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 35 of the 42 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 86 of the 100 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. (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? V the null hypothesis. There V sufficient evidence to support the claim that The P-value is V the significance level of a = 0.01, so echinacea treatment has an effect. is not b. Test the clainm by constructing an appropriate confidence interval. is The 99% confidence interval is <(P1-P2)

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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Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 35 of the 42 subjects treated with echinacea developed rhinovirus infections. In
a placebo group, 86 of the 100 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?
O A. Ho P1= P2
H P1 <P2
O B. Ho: P1 = P2
H P, # P2
O C. Ho P1 P2
H1: P1 P2
O D. Ho P12P2
H P1 #P2
O E. Ho P1=P2
H P> P2
OF. Ho: P1SP2
H, P1 #P2
Identify the test statistic.
(Round to two decimal places as needed.).
Identify the P-value.

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