CONTRASTA 2 (1 JRANG | Questin Attempt 1 of 3 1 2 3 Kendall V Are you smarter than a second-grader? A random sample of 58 second-graders in a certain school district are given a standardized mathematics skills test. The sample mean score is x-47. Assume the standard deviation of test scores is a 15. The nationwide average score on this test is 50. The school superintendent wants to know whether the second-graders in her school district have weaker math skills than the nationwide average. Use the a-0.10 level of significance and the P-value method with the TI-84 calculator. Part: 0/4 Part 1 of 4 State the appropriate null and alternate hypotheses.. D 0 Ho H: This hypothesis test is a (Choose one) test. x 6 Expatol