A random sample of 64 second-graders in a certain school district are given a standardized mathematics skills test. The sample mean score is 51.07 . Assume the standard deviation. for the population of test scores is 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 greater math skills than the nationwide average. Perform the hypothesis test and compute the Pvalue. Write down your P-value. You will need it for the next question. Round your answer to four decimal plackes (for example: 0.2305). Write only a number as your answer. Your Answer: l