Question: A random sample of 87 eighth grade students' scores on a national mathematics assessment test has a mean score of 283. The test results prompts

A random sample of 87 eighth grade students' scores on a national mathematics assessment

test has a mean score of 283. The test results prompts a state school administrator to declare

that the mean score for the eighth graders on the exam is more than 280. Assume the

population deviation is 37. At = 0.14, is there enough evidence to support the administrator's

claim?

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