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Can someone please help me on this problem? Thank you! Are you smarter than a second-grader? A random sample of 62 second-graders in a certain

Can someone please help me on this problem? Thank you!

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Are you smarter than a second-grader? A random sample of 62 second-graders in a certain school district are given a standardized mathematics skills test. The sample mean score is x - 53. Assume the standard deviation of test scores is o - 8. The nationwide average score on this test is 51. The school superintendent wants to know whether the second-graders in her school district are different from the nationwide average. Use the a- 0.05 level of significance and the critical value method

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