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? reject the null The P-value is less than the significance level of a = 0.01, so greater than fail to reject hypothesis. There is not sufficient evidence to support the claim that echinacea treatment is has an effect. b. Test the claim by constructing an appropriate confidence interval. The 99% confidence interval is <(p₁-p₂) <. (Round to three decimal nlaces as needed) (Round to three decimal places as needed.) What is the conclusion based on the confidence interval?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Q6.

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?
reject
the null
The P-value is less than the significance level of a=0.01, so
greater than
fail to reject
hypothesis. There is not sufficient evidence to support the claim that echinacea treatment
is
has an effect.
b. Test the claim by constructing an appropriate confidence interval.
The 99% confidence interval is
<(p₁-p₂)<
(Round to three decimal nlaces as needed)
(Round to three decimal places as needed.)
What is the conclusion based on the confidence interval?
Transcribed Image Text: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? reject the null The P-value is less than the significance level of a=0.01, so greater than fail to reject hypothesis. There is not sufficient evidence to support the claim that echinacea treatment is has an effect. b. Test the claim by constructing an appropriate confidence interval. The 99% confidence interval is <(p₁-p₂)< (Round to three decimal nlaces as needed) (Round to three decimal places as needed.) What is the conclusion based on the confidence interval?
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Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 45 of the 51 subjects treated with echinacea developed rhinovirus
infections. In a placebo group. 83 of the 96 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.
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 sample of subjects treated with a placebo. What a
the null and alternative hypotheses for the hypothesis test?
OC. Ho: P₁
P2
OB. Ho: P₁
P₂
OA. Ho P₁ P2
H₁: P1
H₁ P₁
P2
H₁ P₁ P₂
OF. Ho: P₁
O E. Ho: P₁
H₁: P₁
OD. Ho: P12 P₂
H₁: P₁ P2
H₁: P₁
--
P2
P2
um
P2
P2
P2
Transcribed Image Text:O Points: 0 of 1 Save Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 45 of the 51 subjects treated with echinacea developed rhinovirus infections. In a placebo group. 83 of the 96 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. 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 sample of subjects treated with a placebo. What a the null and alternative hypotheses for the hypothesis test? OC. Ho: P₁ P2 OB. Ho: P₁ P₂ OA. Ho P₁ P2 H₁: P1 H₁ P₁ P2 H₁ P₁ P₂ OF. Ho: P₁ O E. Ho: P₁ H₁: P₁ OD. Ho: P12 P₂ H₁: P₁ P2 H₁: P₁ -- P2 P2 um P2 P2 P2
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