Question: A random sample of (60) 2nd graders in a certain school district are given a standardized math skills test. The sample mean score is equal

A random sample of (60) 2nd graders in a certain school district are given a standardized math skills test. The sample mean score is equal to 52. Assume the standard deviation of the test scores is o =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. What are the appropriate null and alternate hypotheses? O Ho: mean=50, H1: mean>50 O Ho: mean=52, H1: mean>50 O Ho: mean=50, H1: mean52 O Ho: mean=50, H1: mean#50 O Ho: mean=50, H1: mean52 Previous Next

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