A random sample of 83 eighth grade students' scores on a national mathematics assessment test has a mean score of 275. 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 30. 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 H,. Choose the correct answer below. O A. Ho: u= 270 (claim) H u> 270 O B. Ho: uz 270 (claim) H, u<270 OC. Ho u<270 Ha u2270 (claim) O D. Ho: = 270 H u> 270 (claim) O E. Ho us270 (claim) O F. H, us270 H u> 270 (claim) H, u> 270

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.