Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 38 of the 43 subjects treated withechinacea developed rhinovirus infections. In a placebo group, 86 of the 103 subjects developed rhinovirus infections. Use a0.05 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 the sample ofsubjects treated with a placebo. What are the null and alternative hypotheses for the hypothesis test?O C. Ho: P1 + P2A. Ho: P1 = P2H1: P1 # P2O B. Ho: P1 = P2H1: P1 P2O F. Ho: P1 2 P2H1: P1 #P2Identify the test statistic.Z =(Round to two decimal places as needed.) A simple random sample of front-seat occupants involved in car crashes is obtained. Among 2974 occupants not wearing seatbelts, 29 were killed. Among 7614 occupants wearing seat belts, 19 were killed. Use a 0.01 significance level to test the claimthat seat belts are effective in reducing fatalities. Complete parts (a) through (c) below.a. Test the claim using a hypothesis test.Consider the first sample to be the sample of occupants not wearing seat belts and the second sample to be the sample ofoccupants wearing seat belts. What are the null and alternative hypotheses for the hypothesis test?O A. Ho: P1 = P2H1: P1 P2O D. Ho: P1 # P2H1: P1 = P2O E. Ho: P1 = P2H1: P1 # P2O F. Ho: P1 2 P2H1: P1 +P2Identify the test statistic.Z=(Round to two decimal places as needed.)

Name: Rhino viruses typically cause common colds. In a test of the effectiv
Uploaded: 2024-03-20T07:07:00.000Z
Channel: Bartleby
Description: Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 38 of the 43 subjects treated withechinacea developed rhinovirus infections. In a placebo group, 86 of the 103 subjects developed rhinovirus infections. Use a0.

Answered: Image /qna-images/answer/7e3a7c7e-46cd-4fc9-a144-f3d0fe326fcc.jpg

Math

Statistics

Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 38 of the 43 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 86 of the 103 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 the sample of subjects treated with a placebo. What are the null and alternative hypotheses for the hypothesis test? A. Ho: P1 = P2 H1: P1 #P2 O B. Ho: P1 = P2 O C. Ho: P1 # P2 H1: P1 = P2 H1: P1 P2 Identify the test statistic.