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A tandom sample of 90 eighth grade students' scores on a national mathematics assessment test has a mean score of 288 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 200. Assume that the population standard deviation is 34 Al a=0 12, is there enough evidence to support the administrator's claim? Complete parts (a) through (e). (a) Write the claim mathematically and identity H, and H, Choose the corect answor below OB. H, 2 280 (claim) OC. Ha us280 (clam) OA. H, = 280 (clam) H> 280 OD. Ho < 280 H, p2 280 (claim) H, p<280 H, > 280 OE Ho 280 H, 200 (claim) OF. Ho ps 280 H, 280 (claim) (b) Find the standardzed test statistc 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 fai to reject the null hypothesis O. Reject Ho Fail to reject Ho

A tandom sample of 90 eighth grade students' scores on a national mathematics assessment test has a mean score of 288 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 200. Assume that the population standard deviation is 34 Al a=0 12, is there enough evidence to support the administrator's claim? Complete parts (a) through (e). (a) Write the claim mathematically and identity H, and H, Choose the corect answor below OB. H, 2 280 (claim) OC. Ha us280 (clam) OA. H, = 280 (clam) H> 280 OD. Ho < 280 H, p2 280 (claim) H, p<280 H, > 280 OE Ho 280 H, 200 (claim) OF. Ho ps 280 H, 280 (claim) (b) Find the standardzed test statistc 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 fai to reject the null hypothesis O. Reject Ho Fail to reject Ho

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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A random sample of 90 eighth grade students' scores on a national mathematics assessment test has a mean score of 288 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 280. Assume that the population standard deviation is 34 Al a=0 12, is there enough evidence to support the administrator's claim? Complete parts (a) through (e) (a) Write the claim mathematically and identity H, and H, Choose the correct answer below OA. H = 280 (claim) H > 280 OB. H, p2 280 (claim) H, p<280 OC. Ho us280 (clam) H, u> 280 OD. Ho p< 280 H, p2 280 (claim) O E. Ho 200 H, p> 200 (claim) OF. Ho ps 280 H, 280 (clam) (b) Find the standardzed test statistic z, and its corresponding area Round to two decimal places as needed ) (c) Find the P.value. P.value = (Round to three decinial places as needed ) (d) Decide whether to reject or fal to reject the null hypothesis O. Reject Ho Fail to reject Ho
Transcribed Image Text:A random sample of 90 eighth grade students' scores on a national mathematics assessment test has a mean score of 288 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 280. Assume that the population standard deviation is 34 Al a=0 12, is there enough evidence to support the administrator's claim? Complete parts (a) through (e) (a) Write the claim mathematically and identity H, and H, Choose the correct answer below OA. H = 280 (claim) H > 280 OB. H, p2 280 (claim) H, p<280 OC. Ho us280 (clam) H, u> 280 OD. Ho p< 280 H, p2 280 (claim) O E. Ho 200 H, p> 200 (claim) OF. Ho ps 280 H, 280 (clam) (b) Find the standardzed test statistic z, and its corresponding area Round to two decimal places as needed ) (c) Find the P.value. P.value = (Round to three decinial places as needed ) (d) Decide whether to reject or fal to reject the null hypothesis O. Reject Ho Fail to reject Ho
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