Arandom sample of 90 eighth grade students' scores on a national mathematics assessment test has a mean score of 276 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 270 Assume that the population standard deviation is 40. At a = 0 13, is there enough evidence to support the administrator's claim? Complete parts (a) through (e). (a) Write the claim mathematically and identify Ho and H. Choose the correct answer below. O C. Ho p2 270 (claim) A. Ho p= 270 H p>270 (claim) OB. Ho ps270 (claim) Ha p>270 Ha p<270 Ho H=270 (claim) Ha p> 270 VE Hg ps270 H. p>270 (claim) OF H p<270 Hp2270 (claim) a (b) Find the standardized test statistic z, and its corresponding area. z= 1.42 (Round to two decimal places as needed.) (c) Find the P-value. P-value = (Round to three decimal places as needed.) R.. Insta... W PDF DRAFT 2021 dents.pdf Deputy Fire. Enter your answer in the answer box and then click Check Answer. Check Answer 2 parts remaining Clear All Riley LAMA DRAET Denuta. Fire Calendar - mregal...

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