Question

Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 33 of...

Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 33 of the 40 subjects treated with echinacea developed rhinovirus infections. In a placebo​ group, 84 of the 98 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?

b. Identify the test statistic.

​(Round to two decimal places as​ needed.)

c. Identify the​ P-value.

​P-value= ???

​(Round to three decimal places as​ needed.)

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

The statistical software output for this problem is:

a) Hypotheses:

Ho: p1 = p2

Ha: p1 < p2

b) Test statistic = -0.48

c) P - value = 0.317

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 44 of...
Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 44 of the 50 subjects treated with echinacea developed rhinovirus infections. In a placebo​ group, 74 of the 90 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...
Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 37 of...
Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 37 of the 42 subjects treated with echinacea developed rhinovirus infections. In a placebo​ group, 98 of the 113 subjects developed rhinovirus infections. Use a 0.01 significance level to test the claim that echinacea has an effect on rhinovirus infections. Find the test statistic Z to two or more decimal places and the P-value to three or more places.
Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 35 of...
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, 80 of the 93 subjects developed rhinovirus infections. Use a 0.05 significance level to test the claim that echinacea has an effect on rhinovirus infections. What are the null and alternative hypotheses for the hypothesis​test? identify the test statistic and p-value
Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 46 of...
Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 46 of the 51 subjects treated with echinacea developed rhinovirus infections. In a placebo​ group, 84 of the 101 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...
Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 44 of...
Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 44 of the 51 subjects treated with echinacea developed rhinovirus infections. In a placebo​ group, 95 of the 112 subjects developed rhinovirus infections. Use a 0.01 significance level to test the claim that echinacea has an effect on rhinovirus infections. 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...
Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 38 of...
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, 81 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. Identify the test statistic.
Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 36 of...
Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 36 of the 43 subjects treated with echinacea developed rhinovirus infections. In a placebo​ group, 96 of the 109 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. b. Identify the test statistic c. P-value d. Confidence interval
Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 40 of...
Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 40 of the 46 subjects treated with echinacea developed rhinovirus infections. In a placebo​ group, 91 of the 108 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. identify the test statistic Z= find the P-value=
Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 40 of...
Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 40 of the 45 subjects treated with echinacea developed rhinovirus infections. In a placebo​ group, 82 of the 98 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) find test statistic b) find the p-value c) construct a confidence interval
2. Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 35...
2. Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 35 of the 40 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 90 of the 107 subjects developed rhinovirus infections. Use a 0.05 significance level to test the claim that echinacea has an effect on rhinovirus infections. ldentify the test statistic and the P-Value. Test the claim by constructing an appropriate confidence interval.(95%)
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT