Edge n/Student/PlayerTest.aspx?testId=248296075¢erwin=yes 02 Section K quy ngo 03/29/23 11:55 PM Question 2 of 4 This quiz: 11 point(s) possible This question: 4 point(s) possible Submit quiz A standardized test has a scale that ranges from 3 to 45. A new type of review course for the test was developed by a training company. The accompanying table shows the scores for nine students before and after taking the review course. Complete parts (a) through (d) below. Click the icon to view the data table. The critical value(s) is (are) (Use a comma to separate answers as needed. Round to two decimal places as needed.) Interpret the results of the hypothesis test. Since the test statistic c. Identify the p-value and interpret the result. the critical value(s), the null hypothesis. There is evidence that the mean score is higher after the review course. p-value= (Round to three decimal places as needed.) Interpret the result. Since the p-value the significance level, the null hypothesis. There is evidence that the mean score is higher after the review course. d. What assumptions need to be made in order to perform this procedure? OA. The samples are independent, and the distribution of the matched-pair differences between the measurements for the population is approximately uniform if the number of matched pairs is less than 30. OB. The samples are independent, and the distribution of the matched-pair differences between the measurements for the population is approximately normal if the number of matched pairs is 30 or greater. OC. The samples are dependent, and the distribution of the matched-pair differences between the measurements for the population is approximately uniform if the number of matched pairs is 30 or greater. D. The samples are dependent, and the distribution of the matched-pair differences between the measurements for the population is approximately normal if the number of matched pairs is less than 30. Search hype myhp SAM W Time Remaining: 00:29:33 ^ VIE Next 11:55 PM 2023-03-29 dge /Student/PlayerTest.aspx?testid=248296075¢erwin=yes O2 Section K A quy ngo 03/29/23 11:55 PM Question 2 of 4 > This quiz: 11 point(s) possible This question: 4 point(s) possible Submit quiz A standardized test has a scale that ranges from 3 to 45. A new type of review course for the test was developed by a training company. The accompanying table shows the scores for nine students before and after taking the review course. Complete parts (a) through (d) below. Click the icon to view the data table. a. Perform a hypothesis test using a = 0.05 to determine if the average test score is higher for the students after the review course when compared with before the course. Let d be the population mean of matched-pair differences for the score before the course minus the score after the course. State the null and alternative hypotheses. Choose the correct answer below. OA. Ho Hd=0 Pa #0 OC. Ho Hd 0 H Hd > 0 O E. Ho Hd 0 OF. Ho Hd 2 0 20 b. Calculate the appropriate test statistic and interpret the results of the hypothesis test using = 0.05. The test statistic is (Round to two decimal places as needed.) The critical value(s) is (are) (Use a comma to separate answers as needed. Round to two decimal places as needed.) Interpret the results of the hypothesis test. Since the test statistic c. Identify the p-value and interpret the result. the critical value(s), Q Search the null hypothesis. There is evidence that the mean score is higher after the review course. hp myhp SAM W Time Remaining: 00:29:38 Next ^ VIE 11:55 PM 2023-03-29