Consider a drug testing company that provides a test for marijuana usage. Among 250 tested subjects, results from 28 subjects were wrong. (Either false positive or a false negative). Use 0.05 significance level to test the claim that less than 10% of the test results are wrong. A. Identify the bull and the alternative hypothesis for the test. B. Identify the test statistic for this hypothesis test. C. Identify the P Value for this hypothesis test. D. Identify the conclusion for this hypothesis test
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Consider a drug testing company that provides a test for marijuana usage. Among 250 tested subjects, results from 28 subjects were wrong. (Either false positive or a false negative). Use 0.05 significance level to test the claim that less than 10% of the test results are wrong.
A. Identify the bull and the alternative hypothesis for the test.
B. Identify the test statistic for this hypothesis test.
C. Identify the P Value for this hypothesis test.
D. Identify the conclusion for this hypothesis test
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- Consider a drug testing company that provides a test for marijuana usage. Among 302 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. a. The test statistic for this hypothesis test is (Round to two decimal places as needed.) b. Identify the P-value for this hypothesis test. The P-value for this hypothesis test is (Round to three decimal places as needed.)Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 42 of the 48 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 93 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. 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 s P2 H1: P1 # P2 O B. H9: P1 = P2 H1: P1 P2 O E. Ho: P1 = P2 O F. Ho: P1 2 P2 O D. Ho: P1 P2 H1: P1 = P2 H1: P1 +P2 Identify the test statistic. (Round to two decimal places as needed.) Identify the P-value. P-value = (Round to three decimal places as needed.)Suppose 231 subjects are treated with a drug that is used to treat pain and 51 of them developed nausea. Use a 0.10 significance level to test the claim that more than 20% of users develop nausea. Identify the null and alternative hypotheses for this test. Choose the correct answer below. A. Ho: p=0.20 H₁: p>0.20 O B. Ho: p=0.20 H₁: p0.20 O C. Ho: p>0.20 H₁: p=0.20 D. Ho: p=0.20 H₁: p<0.20 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.)
- A hypothesis test is being planned with the following hypotheses:H0: Vaping during pregnancy does not affect fetal development.HA: Vaping during pregnancy negatively affects fetal development.a. Describe a type I error in this context.b. Describe a type II error in this context.c. Which type of error do you think is more dangerous? Explain briefly.d. Which of the following significance levels is most appropriate: 0.01, 0.05, or 0.10?In 1997, a survey of 800800 households showed that 132132 of them use e-mail. Use those sample results to test the claim that more than 15% of households use e-mail. Use a 0.05 significance level. Use this information to answer the following questions. a. Which of the following is the hypothesis test to be conducted? A. Upper H 0 : p equals 0.15H0: p=0.15 Upper H 1 : p not equals 0.15H1: p≠0.15 B. Upper H 0 : p equals 0.15H0: p=0.15 Upper H 1 : p less than 0.15H1: p<0.15 C. Upper H 0 : p greater than 0.15H0: p>0.15 Upper H 1 : p equals 0.15H1: p=0.15 D. Upper H 0 : p equals 0.15H0: p=0.15 Upper H 1 : p greater than 0.15H1: p>0.15 Your answer is correct. E. Upper H 0 : p less than 0.15H0: p<0.15 Upper H 1 : p equals 0.15H1: p=0.15 F. Upper H 0 : p not equals 0.15H0: p≠0.15 Upper H 1 : p equals 0.15H1: p=0.15 b. What is the test statistic? zequals=nothing (Round to two decimal places as needed.) What is it the…Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 33 of the 39 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 99 of the 113 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? O A. Ho: P1 2 P2 H1: P1 # P2 B. Ho: P1 + P2 O C. Ho: P1 = P2 H1: P1 = P2 H: P1 # P2 F. Ho: P1 = P2 E. Ho: P1 sP2 H4: P1 # P2 D. Ho: P1 = P2 H1: P1 > P2 H4: P1Consider a drug testing company that provides a test for marijuana usage. Among 263 tested subjects, results from 29 subjects were wrong (either a false positive or a false negative). Use a 0.05 significance level to test the claim that less than 10 percent of the test results are wrong. a. Identify the test statistic for this hypothesis test. (Round to two decimal places as needed.) b. the P-value for this hypothesis test is (Round to three decimal places as needed.)Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 33 of the 39 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 92 of the 106 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;: P, # P2 O B. Ho: P1 = P2 H;: P, > P2 OC. Ho: P1 = P2 H: P,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: P12. A marketing manager for a phone company claims that 55% of children ages 8-12 have their own cell phones. In a random survey of 802 children ages 8-12, 460 of them had phones. Conduct a hypothesis test for the manager's claim. Use a x= 0.05 significance level. a. Write the null and alternative hypothesis b. Find the test statistic (2 decimal places) c. Find the p-value (4 decimal places) d. Decision: reject or fail to reject? Why? e. Conclusion in context of the problem Calculator Commandwhat are the group means for each of the three groups？Rhinoviruses typically cause common colds. In a test of the effectiveness of echinacea, 41of the 47 subjects treated with echinacea developed rhinovirus infections. In a placebo group,79 of the 95 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? Identify z = ______ Identify P value = _______ Identify the conclusion based on the hypothesis tests: The appropriate confidence level is _______ what is the conclusion based on the confidence interval what do the results suggest about the effect of the rhinovirus?SEE MORE QUESTIONSRecommended textbooks for youMATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons Inc
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