A random sample of 80 eighth grade students' scores on a national mathematics assessment test has a mean score of 289. 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 285. Assume that the population standard deviation is 37. At a = 0.05, is there enough evidence to support the administrator's claim? Complete parts (a) through (e). (a) Write the claim mathematically and identify Ho and Ha. Choose the correct answer below. O A. Ho: µ= 285 Ha: µ> 285 (claim) O B. Ho: H = 285 (claim) O C. Ho: µ<285 Ha: µ2 285 (claim) Ha: H>285 O D. Ho: u2285 (claim) Ha:u<285 O E. Ho: Hs285 Ha:H> 285 (claim) OF. Ho: HS285 (claim) Ha:>285

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