Sample 1 Assume that both populations are normally distributed. a) Test whether u, >H, at the a= 0.05 level of significance for the given sample data. b) Construct a 95% confidence interval about u, - Hz. Sample 2 20 12 47.5 37.6 6.9 9 a) Perform a hypothesis test. Determine the null and alternative hypotheses. O A. Họ: H1 H2 O B. Ho: H1 = H2, H1: H1 H2 O D. Ho: H1 > H2, H: H1
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- Assume that both populations are normally distributed. a) Test whether . Population 1 Population 2 10 11.1 Pt2 at the a= 0.05 level of significance for the given sample data 10 9.8 2.3 (b) Construct a 95% confidence interval about u, - H3. 2.7 H1 H1 > H2 O C. Ho H1-H2 H1 H1> H2 D. Ho H1=H2 %3D Detemine the P-value for this hypothesis test. P = (Round to three decimal places as needed.) %24Construct the indicated confidence interval for the difference between the two population means. Assume that the assumptions and conditions for inference have been met. A researcher was interested in comparing the heights of women in two different countries. Independent random samples of 9 women from country A and 9 women from country B yielded the following heights (in inches). Country A Country B 64.1 65,3 66.4 60.2 61.7 61,7 62.0 65.8 67.3 61.0 64.9 64.6 64.7 60.0 68.0 65.4 63.6 59.0 Determine a 90% confidence interval for the difference, HA - He. between the mean height of women in Country A and the mean height of women in Country B. O A. (0.15, 4.23) O B. (0.17, 4.21) OC. (0.14, 4.24) O D. (0.16, 4.22) O E. (-4.22, -0.16)Given the two independent samples below, conduct a hypothesis test for the desired scenario. Assume all populations are approximately normally distributed. Sample 1 Sample 2 110 n2 : 179 28.9 23.6 81 = 3.8 82 = 3.9 Test the claim: Given the null and alternative hypotheses below, conduct a hypothesis test for a = 0.05. Ho: H1 = 42 Ha: H1 < 42 a. Given the alternative hypothesis, the test is Select an answer b. Determine the test statistic. Round to four decimal places. t = c. Find the p-value. Round to 4 decimals. с. p-value = d. Make a decision. O Fail to reject the null hypothesis. O Reject the null hypothesis.
- Assume that both populations are normally distributed. a) Test whether µ, >H, at the a = 0.05 level of significance for the given sample data. Sample 2 12 Sample 1 20 b) Construct a 95% confidence interval about u, - H2. 47.5 37.6 6.9 9 E Click the icon to view the Student t-distribution table. a) Perform a hypothesis test. Determine the null and alternative hypotheses. O A. Ho: H1 H2 O B. Ho: H1 = H2, H4: H1 H2 O D. Ho: H1 > H2, Hq:HqTest whether µ, <µ, at the a = 0.01 level of significance for the sample data shown in the accompanying table. Assume that the populations are normally distributed. Click the icon to view the data table. Determine the null and alternative hypothesis for this test. A. Ho:H1Perform a hypothesis test to determine whether there is a difference in the mean attendance of teams between the two groups created in Part F. Use a 0.05 level of significance in your testing procedures. Hint: When calculating your pooled sample variance and your test statistic, assume the Top 10 data is sample 1 and the Bottom 10 data is sample 2. Decision Rule -t < or t > = REJECT H0 Value of Pooled Sample Variances Value of test statistic Decision: enter Reject or Do Not Reject Is there a difference in the mean attendance between the two groups assuming a 0.05 level of significance? Enter Yes or No. Another variable that can impact attendance is the team's win-loss record. Teams that are winning more games are thought to have increased attendance as fans prefer to see their home team "win" rather than "lose" (although for some teams such as the Chicago Cubs, this is not always an established relationship!). Create 2 samples…Assume that both populations are normally distributed. a) Test whether u >H2 at the a = 0.01 level of significance for the given sample data. b) Construct a 99% confidence interval about u - 42- Sample 1 28 52.6 Sample 2 23 44.1 9.4 O A. Ho: H1 H2 O B. Ho: H1 = H2, H:Hq H2, HHy H2 Determine the test statistic. t= (Round to two decimal places as needed.) Approximate the P-value. Choose the correct answer below. O A. P-value 20.10 O B. P-value <0.01 O C. 0.05 s P-value <0.10 O D. 0.01 SP-value <0.05 Should the hypothesis be rejected at the a = 0.01 level of significance? V the null hypothesis because the P-value is V the level of significance. b) The confidence interval is the range from to (Round to twwo decimal places as needed. Use ascending order2. Use a -test to test the claim o35 H o 35 urses Identify the test statistic. (Roul to three decimal places as needed.) е Home nments ebook oter Contents Itimedia Library Help me solve this View an example Get more help- Clear all: Check ansWET dy Plan ols for Sucress Type here to search 99+ 72°F A 56 F3 容+ F5 F6 Delete F7 F8 F9 PriSc Insert F10 (0)following hypothesis test for matched data: Но : ld H1 : Hd + 0 For a sample of 18, it was found that d = 2.9 and sa = 3.56. Determine each of the following: The value of the test statistic: For a = 0.025, the final conclusion is O A. There is enough evidence to say that Hd = 0 B. There is enough evidence to say that ud # 0 C. There is not enough evidence to say that ld = 0 D. There is not enough evidence to say that Hd + 0.Assume that both populations are normally distributed. a) Test whether u > H2 at the a = 0.01 level of significance for the given sample data. b) Construct a 99% confidence interval about u - 42. 177 Sample 1 24 51.7 9.5 Sample 2 43.1 99 O A. Ho: H1 = H2, H:Hq>H2 O B. Ho: H1 = H2, HH1H2, H1: H1 H2 Determine the test statistic. %3D (Round to two decimal places as needed.) Approximate the P-value. Choose the correct answer below. O A. P-value 20.10 O B. P-value <0.01 O C. 0.01 s P-value <0.05 O D. 0.05 s P-value <0.10 Should the hypothesis be rejected at the a = 0.01 level of significance? V the null hypothesis because the P-value is the level of significance. b) The confidence interval is the range from to (Round to two decimal places as needed. Use ascending order.)Use a t-test to test the claim about the population mean u at the given level of significance a using the given sample statistics. Assume the population is normally distributed. Claim: u+ 29; a = 0.10 Sample statistics: x =30.3 , s 5.2, n = 11 What are the null and alternative hypotheses? Choose the correct answer below. A. H u#29 H u= 29 B. H: uz 29 H u 29 VD. H,: H= 29 H: u#29 correct: 0 What is the value of the standardized test statistic? The standardized test statistic is (Round to two decimal places as needed.)The data below show sport preference and age of participant from a random sample of members of a sports club. Is there evidence to suggest that they are related? Tennis Swimming Basketball 18-25 68 100 88 26-30 110 93 52 31-40 90 88 69 Over 40 68 66 49 What can be concluded at the αα = 0.10 significance level? What is the correct statistical test to use? Goodness-of-Fit Homogeneity Independence Paired t-test What are the null and alternative hypotheses?H0:H0: Age and sport preference are independent. Age and sport preference are dependent. The age distribution is the same for each sport. The age distribution is not the same for each sport. H1:H1: The age distribution is the same for each sport. Age and sport preference are dependent. Age and sport preference are independent. The age distribution is not the same for each sport. The test-statistic for this data = (Please show your answer to three decimal places.) The p-value for this sample =…SEE MORE QUESTIONSRecommended textbooks for youMATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons Inc
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