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Arandom sample of 83 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 30. At a=0.11, is there enough evidence to support the administrator's claim? Complete parts (a) through (e). O A. Ho us 260 H p> 260 (claim) O B. Ho <260 H 2 260 (claim) O C. Ho us260 (claim) Hy µ> 260 O D. H: = 260 (claim) H p> 260 O E. Hg 2260 (claim) H, u<260 OF. Ho: u= 260 H, u> 260 (claim) (b) Find the standardized test statistic z, and its corresponding area. z= (Round to two decimal places as needed.) (c) Find the P-value. P-value = (Round to three decimal places as needed) (d) Decide whether to reject or fail to reject the null hypothesis. O Reject Ho O Fall to reject Ho

Arandom sample of 83 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 30. At a=0.11, is there enough evidence to support the administrator's claim? Complete parts (a) through (e). O A. Ho us 260 H p> 260 (claim) O B. Ho <260 H 2 260 (claim) O C. Ho us260 (claim) Hy µ> 260 O D. H: = 260 (claim) H p> 260 O E. Hg 2260 (claim) H, u<260 OF. Ho: u= 260 H, u> 260 (claim) (b) Find the standardized test statistic z, and its corresponding area. z= (Round to two decimal places as needed.) (c) Find the P-value. P-value = (Round to three decimal places as needed) (d) Decide whether to reject or fail to reject the null hypothesis. O Reject Ho O Fall to reject Ho

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A random sample of 83 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 30. At a= 0.11, is there enough evidence to support the administrator's claim? Complete parts (a) through (e). O C. Ho us 260 (claim) O A. Ho: us 260 Ha: p> 260 (claim) O B. Ho p<260 H p2 260 (claim) H p> 260 O E. Ho µ2 260 (claim) H p< 260 OF Ho u=260 H, p> 260 (claim) O D. Ho H= 260 (claim) Ha p> 260 (b) Find the standardized test statistic z, and its corresponding area. (Round to two decimal places as needed.) (c) Find the P-value. P-value = (Round to three decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis. O Reject Ho O ail to reject Ho Textbook Calculator Next 5:46 PM P Type here to search 99+ 52°F 12/5/2021 22 1005/17 EGO ED F10 F11 PrtSc Insert Delete F12 Backspace 080 9- Lock O 08. Home K Enter () 本 CO
Transcribed Image Text:A random sample of 83 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 30. At a= 0.11, is there enough evidence to support the administrator's claim? Complete parts (a) through (e). O C. Ho us 260 (claim) O A. Ho: us 260 Ha: p> 260 (claim) O B. Ho p<260 H p2 260 (claim) H p> 260 O E. Ho µ2 260 (claim) H p< 260 OF Ho u=260 H, p> 260 (claim) O D. Ho H= 260 (claim) Ha p> 260 (b) Find the standardized test statistic z, and its corresponding area. (Round to two decimal places as needed.) (c) Find the P-value. P-value = (Round to three decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis. O Reject Ho O ail to reject Ho Textbook Calculator Next 5:46 PM P Type here to search 99+ 52°F 12/5/2021 22 1005/17 EGO ED F10 F11 PrtSc Insert Delete F12 Backspace 080 9- Lock O 08. Home K Enter () 本 CO
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