A random sample of 60 second-graders in a certain school district are given a standardized mathematics skills test. The sample mean score is x = 52. Assume the standard deviation of test scores is σ = 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.

a) State the appropriate null and alternate hypotheses.

b) Compute the P-Value.

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Answer a Null hypothesis Alternative hypothesis b Stepbystep explana... View the full answer