Test: MAT 111 Exam 4 Question 21 of 21 This test: 21 point(s) possible This question: 1 point(s) possible Data for the ages of grooms and their brides for a random sample of 31 couples in a certain county are provided. Complete parts a and b below. BEB Click the icon to view the data. a. Find and compare the sample means. The sample mean for the grooms, , is than the sample mean for their brides,]. (Round to three decimal places as needed.) b. Test the hypothesis that there is a significant difference in mean ages of brides and grooms, using a significance level of 0.05. Determine the hypotheses for this test. Let Hdifference be the population mean difference between the ages of grooms and their brides, in years. Choose the correct answer below. O A. Ho: Hdifference # 0 O B. Ho: Hdifference = 0 Ha: "difference > 0 Ha : Hdifference 0 Find the test statistic for this test. t= (Round to two decimal places as needed.) Find the p-value for this test. p-value = (Round to three decimal places as needed.) What is the conclusion for this test? O A. Reject Ho. The mean ages are significantly different. Time Remaining: 01:01:57 Calculator Sub MacBook Pro esc