... P mathxl.com STAT 4300 02 F21 Data Driven Decision Making Fangyuan Li & | 12/01/217:04 PM = Test: Exam #4 Chapters 8, 11, 12 Question 13 of 14 This test: 14 point(s) possible This question: 1 point(s) possible Submit test Independent random samples from normal populations produced the results shown in the table to the right. Complete parts Sample 1 Sample 2 a through d below. 1.6 3.6 2.3 3.2 2.2 2.9 3.1 3.6 1.5 a. Calculate the pooled estimate of 62. Sp =] (Round to four decimal places as needed.) b. Do the data provide sufficient evidence to indicate that H2 > H, ? Test using a = 0.05. What are the null and alternative hypotheses? O A. HO: H1 - H2=0 O B. HO: My - H2= 0.05 Ha: H1 - H2 0 What is the test statistic? t= (Round to two decimal places as needed.) What is the observed significance level? p-value = Next... P mathxl.com STAT 4300 02 F21 Data Driven Decision Making Fangyuan Li & | 12/01/217:05 PM = Test: Exam #4 Chapters 8, 11, 12 Question 13 of 14 This test: 14 point(s) possible This question: 1 point(s) possible Submit test Independent random samples from normal populations produced the results shown in the table to the right. Complete parts Sample 1 Sample 2 a through d below. 1.6 3.6 2.3 3.2 2.2 2.9 3.1 3.6 1.5 Interpret the results. Choose the correct answer below. O A. Do not reject Ho. There is sufficient evidence to indicate that #2 > M1. O B. Reject Ho. There is sufficient evidence to indicate that H2 > My. O C. Do not reject Ho. There is not sufficient evidence to indicate that H2 > My. O D. Reject Ho. There is not sufficient evidence to indicate that #2 > My. c. Find a 90% confidence interval for (H1 - H2) . The confidence interval is (,) (Round to two decimal places as needed.) d. Which of the two inferential procedures, the test of hypothesis in part b or the confidence interval in part c, provides more information about (H1 - H2) ? O A. The confidence interval provides more information about (H1 - H2 ) because it gives an O B. The hypothesis test provides more information about (H1 - H2) because it gives a interval estimate of both , and H2, while the hypothesis test only addresses whether ranged estimate of (M1 - H2) , while the confidence interval only addresses whether H2 > H 1 . H2 > Hy . O C. The hypothesis test provides more information about (H1 - H2 ) because it gives a O D. The confidence interval provides more information about (H1 - H2 ) because it gives an ranged estimate of both u, and H2, while the confidence interval only addresses interval estimate of (M1 - H2 ) , while the hypothesis test only addresses whether Next