The results of a trial involving an experimental vaccine for children are shown below.Developed flu Did not develop flu70Vaccine treatment392Placebo95451a. State the relevant null and alternative hypotheses.b. Conduct the appropriate test and state a conclusion. Use a significance level of 0.10......a. Determine the null and alternative hypotheses. Choose the correct answer below.O A. Ho There is a relationship between treatment method and development of flu.HA: Treatment method is independent of flu development.O B. Ho Treatment method and flu development have equal proportions.HA Treatment method and flu development have non-equal proportions.O C. Ho Treatment method and flu development have non-equal proportions.HA Treatment method and flu development have equal proportions.O D. Ho Treatment method is independent of flu development.HA There is a relationship between treatment method and development of flu.b. Calculate the test statistic.*=(Round to three decimal places as needed.)Calculate the p-value.p-value =(Round to four decimal places as needed) Determine a conclusion. Choose the correct answer below.O A. Reject the null hypothesis. There is insufficient evidence to conclude that treatment method and flu development arenot independentO B. Do not reject the null hypothesis. There is insufficient evidence to conclude that treatment method and flu developmentare not independent.O C. Reject the null hypothesis. There is sufficient evidence to conclude treatment method and flu development are notindependent.O D. Do not reject the null hypothesis. There is sufficient evidence to conclude treatment method and flu development arenot independent.

Hypothesis: Ho: Treatment method is independent of flu development. V/s HA: There is a relationship…

Answered: The results of a trial involving an…

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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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, 94 of the 110 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:Pq P2 O C. Ho: P1
Consider a drug that is used to help prevent blood clots in certain patients. In clinical trials, among 6208 patients treated with this drug, 159 developed the adverse reaction of nausea. Use a 0.05 significance level to test the claim that 3% of users develop nausea. Does nausea appear to be a problematic adverse reaction? Identify the null and alternative hypotheses for this test. Choose the correct answer below. O A. Ho: p= 0.03 H1: p>0.03 O B. Ho: p#0.03 H;:p= 0.03 OC. Ho: p=0.03 H1: p#0.03 O D. Ho: p= 0.03 H1: p<0.03 Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test is (Round to two decimal places as needed.) Identify the P-value for this hypothesis test. The P-value for this hypothesis test is. (Round to three decimal places as needed.) Identify the conclusion for this hypothesis test. O A. Reject Hn. There is not sufficient evidence to warrant rejection of the claim that 3% of users develop nausea. O B. Reject Hn. There is…
16% of all college students volunteer their time. Is the percentage of college students who are volunteers larger for students receiving financial aid? Of the 377 randomly selected students who receive financial aid, 72 of them volunteered their time. What can be concluded at the a = 0.10 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ?v Select an answer (please enter a decimal) H: ? v Select an answer v (Please enter a decimal) c. The test statistic ? v (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ? a f. Based on this, we should Select an answer v the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest the population proportion is not significantly higher than 16% at a = 0.10, so there is insufficient evidence to conclude that the percentage of financial aid recipients who volunteer is higher than…
Consider a drug testing company that provides a test for marijuana usage. Among 308 tested subjects, results from 28 subjects were wrong (either a false positive or a false negative). Use a 0.10 significance level to test the claim that less than 10 percent of the test results are wrong. Identify the null and alternative hypotheses for this test. Choose the correct answer below. .... O A. Ho: p=0.1 H1: p#0.1 О в. Но р30.1 H: p>0.1 O C. Ho: p<0.1 H:p=0.1 O D. Ho: p=0.1 H4:p<0.1 Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test is (Round to two decimal places as needed.) Identify the P-value for this hypothesis test. The P-value for this hypothesis test is (Round to three decimal places as needed.) Identify the conclusion for this hypothesis test. O A. Fail to reject H. There is sufficient evidence to warrant support of the claim that less than 10 percent of the test results are wrong. O B. Fail to reject Ho. There is not sufficient…
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B. Identify the test statistic test C. Identify the P-value for this hypothesis test D. If P-value is reject H0 or fail to reject H0?
Consider a drug that is used to help prevent blood clots in certain patients. In clinical trials, among 6084 patients treated with this drug, 148 developed the adverse reaction of nausea. Use a 0.05 significance level to test the claim that 3% of users develop nausea. Does nausea appear to be a problematic adverse reaction? Identify the null and alternative hypotheses for this test. Choose the correct answer below. O A. Ho: p=0.03 H4:p>0.03 O B. Ho: p= 0.03 H1:p<0.03 OC. Ho: p 0.03 H1:p=0.03 O D. Ho: p=0.03 H1:p#0.03 Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test is. (Round to two decimal places as needed.)
4. Researchers believe that men are more physically aggressive than women. To test this, researchers ask 20 participants (10 male, 10 female) to rate how aggressive they are on a scale from 1 to 10. Their scores are listed below. Conduct all six steps of hypothesis testing (use p=.05). Be sure to label all six steps. Also, include a concluding statement (which should include the effect size). Males Females 9 1 8 3 9 5 7 2 8 4 6 3 5 2 9 5 7 4 8 3 M 7.6 3.2 s 1.35 1.32
Consider a drug that is used to help prevent blood clots in certain patients. In clinical trials, among 6167 patients treated with this drug, 150 developed the adverse reaction of nausea. Use a 010 significance level to test the claim that 3% of users develop nausea. Does nausea appear to be a problematic adverse reaction? Identify the null and alternative hypotheses for this test. Choose the correct answer below. O A. Ho p 0.03 H, p=003 O B. H, p=0.03 H p0.03
Passed Failed White candidates Results from a civil servant exam are shown in the table to the right. Is there sufficient evidence to support the claim that the results from the test are discriminatory? Use a 0.01 significance level. Minority candidates Determine the null and alternative hypotheses. O A. Ho: White and minority candidates have the same chance of passing the test. H: White and minority candidates do not have the same chance of passing the test. O B. Ho: A white candidate is more likely to pass the test than a minority candidate. H: A white candidate is not more likely to pass the test than a minority candidate. O C. Ho: A white candidate is not more likely to pass the test than a minority candidate. H: A white candidate is more likely to pass the test than a minority candidate O D. Ho: White and minority candidates do not have the same chance of passing the test. H: White and minority candidates have the same chance of passing the test. Determine the test statistic. =…
Passed Failed White Results from a civil servant exam are shown in the table to the right. Is there sufficient evidence to support the claim that the results from the test are discriminatory? Use a 0.05 significance level. 16 14 candidates Minority candidates 7 21 Determine the null and alternative hypotheses. O A. Ho: White and minority candidates do not have the same chance of passing the test. H4: White and minority candidates have the same chance of passing the test. B. Ho: A white candidate is more likely to pass the test than a minority candidate. H,:A white candidate is not more likely to pass the test than a minority candidate. Ho: A white candidate is not more likely to pass the test than a minority candidate. H,: A white candidate is more likely to pass the test than a minority candidate. D. Ho: White and minority candidates have the same chance of passing the test. H,: White and minority candidates do not have the same chance of passing the test. Determine the test…
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