Mathematics, 01.05.2021 04:40 princessammarah4731
A random sample of 77 eighth grade students' scores on a national mathematics assessment test has a mean score of 285. This test result prompts a state school administrator to declare that the mean score for the state's eighth graders on this exam is more than 280. Assume that the population standard deviation is 36. At α=0.08, is there enough evidence to support the administrator's claim
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