A random sample of 80 eighth grade students' scores on a national mathematics assessment test has a mean score of 292. 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 40. At a = 0.02, 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: H= 285 OB. Ho US285 O C. Ho: HIS 285 (claim) Ha: H > 285 (claim) Ha: [> 285 (claim) Ha: H > 285 O D. Ho: H= 285 (claim) O E. Ho: H 2 285 (claim) OF. Ho: H 285 Ha: HI