Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 33 of the 38 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 94 of the 110 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. (Round to two decimal places as needed.) 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 OD. Ho P1 P2 H₁: P1 P2 Identify the test statistic. Z= OB. Ho P1 P2 H₁ P1 P2 OE Ho P1 P2 H1 P1 P2 C. Ho P1 P2 H₁ P1 P2 OF. Ho P1 P2 H₁: P1 P2 EX
Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 33 of the 38 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 94 of the 110 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. (Round to two decimal places as needed.) 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 OD. Ho P1 P2 H₁: P1 P2 Identify the test statistic. Z= OB. Ho P1 P2 H₁ P1 P2 OE Ho P1 P2 H1 P1 P2 C. Ho P1 P2 H₁ P1 P2 OF. Ho P1 P2 H₁: P1 P2 EX
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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Find the Z
Find the P
The 99% interval is (P1-P2)
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