Consider the hypotheses shown below. Given that x = 57, o = 13, n=39, 55 a. What conclusion should be drawn? b. Determine the p-value for this test. a. The z-test statistic is 1.43 (Round to two decimal places as needed.) The critical z-score(s) is(are) 4 43 (Round to two decimal places as needed. Use a comma to separate answers as needed.) Because the test statistic is greater than the critical value, reject the null hypothesis. b. The p-value is (Round to three decimal places as needed.)