Q,21, DO IT FAST PLS

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. a Click the icon to view the data table. a. Perform a hypothesis test using or = 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 pd 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. 0 Test Scores OA. HO:PdSO OB. Ho:pd20 H1lld> H11Pd0 :3 H1Zpd=0 H1IpdSO 19 30 1 8 33 26 21 29 b. Calculate the appropriate test statistic and interpret the results of the hypothesis test using a = 0.05. The test statistic is . (Round to two decimal places as needed.) :ooauoauiawrox 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. Print Done Since the test statistic E the critical value(s), V the null hypothesis. There is l? evidence that the mean score is higher = '- r i e reVIew course. c. Identify the p-value and interpret the result. 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