Question: Are you smarter than a second grader? A random sample of 61 second graders in a certain school district are given a standardized mathematics

Are you smarter than a second grader? A random sample of 61 second graders in a certain school district are given a standardized mathematics skills test. The sample mean score is x = 45. Assume the standard deviation of test scores is a=20. 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=0.01 level of significance and the P- value method with the TI-84 Plus calculator. Part 1 of 5 (a) State the appropriate null and alternate hypotheses. Ho=50 H

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