Consider the hypotheses shown below. Given that x=48, = 12, n = 39, = 0.05, complete parts a and b. o: 46 H: >46 a) What conclusion should be drawn? b) Determine the p-value for this test. a) The z-test statistic is . (Round to two decimal places as needed.) The critical z-score(s) is (are) . (Round to two decimal places as needed. Use a comma to separate answers as needed.) Because the test statistic b) The p-value is (Round to four decimal places as needed.) the null hypothesis.