A Random Sample Of 89 Eighth Grade Students Scores On A National Mathematics Assessment Test Has A Mean Score Of 267 T 1 (23.99 KiB) Viewed 19 times
A Random Sample Of 89 Eighth Grade Students Scores On A National Mathematics Assessment Test Has A Mean Score Of 267 T 2 (18.52 KiB) Viewed 19 times
A random sample of 89 eighth grade students' scores on a national mathematics assessment test has a mean score of 267. 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 260. Assume that the population standard deviation is 39. At a = 0.09, is there enough evidence to support the administrator's claim? Complete parts (a) through (e) (a) Write the claim mathematically and identity Ho and H. Choose the correct answer below. ΟΑ. Η: μ< 260 H 2250 (claim) OD. H: 12 260 (clam) H < 260 B. Ho:u=260 H > 260 (claim) O E. Ho: 260 (claim) H> 260 OC. Ho us260 He > 260 (claim) OF. Hops 260 (claim) H>260 (b) Find the standardized test statistic 2, and its corresponding area z-Round to two decimal places as needed.)
Anudom sunpie of 89 eighth grade students' scores on a national mathematics assessment test has a mean score of 267. This test result prompts a state school administrator to declare that the main care for the state's eighth grader on this exam is more than 260. Atume that the population standard deviation is 39. A 2009, there enough evidence to support the administrator's claim Complete parts a) through (o) (e) Find the value Pwetown Round to three decimal places as needed) (4) Decide whether to reject ortal to reject the real hypothesis Fail to reject H Roject (9) roeput your docinion in the context of the original claim Mithe significance level, there Menough evidence to the administrator's claim that the mean score for the state's eighth graders on the exam is more than 200
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