A random sample of 90 eighth grade students' scores on a national mathematics assessment test has a mean score of 275. This test result prompts a state school admi exam is more than 270. Assume that the population standard deviation is 31. At a0.09, is there enough evidence to support the administrator's claim? Complete parta (a) Write the claim mathematically and identify Ho and H. Choose the correct answer below. OA. Ho p2270 (claim) Hu<270 O B. H ps270 (claim) H> 270 OE H u=270 (claim) H, > 270 Oc. OD. Hoi u 270 Hiu> 270 (dlaim) OF (b) Find the standardized test statistic z, and its corresponding area. z-O (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.
A random sample of 90 eighth grade students' scores on a national mathematics assessment test has a mean score of 275. This test result prompts a state school admi exam is more than 270. Assume that the population standard deviation is 31. At a0.09, is there enough evidence to support the administrator's claim? Complete parta (a) Write the claim mathematically and identify Ho and H. Choose the correct answer below. OA. Ho p2270 (claim) Hu<270 O B. H ps270 (claim) H> 270 OE H u=270 (claim) H, > 270 Oc. OD. Hoi u 270 Hiu> 270 (dlaim) OF (b) Find the standardized test statistic z, and its corresponding area. z-O (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.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![A random sample of 90 eighth grade students' scores on a national mathematics assessment test has a mean score of 275. This test result prompts a state school admini
exam is more than 270. Assume that the population standard deviation is 31. At a=0.09, is there enough evidence to support the administrator's claim? Complete parts (e
(a) Write the claim mathematically and identify Ho and H,. Choose the correct answer below.
O A. Ho u2270 (claim)
Hp<270
O B. H us 270 (claim)
Hu> 270
OE Hiu=270 (claim)
H> 270
Oc.
OD. Ho: u=270
Haiu> 270 (claim)
OF
(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.
Reject H.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4cd5044c-2f43-430a-93d2-b0b38bcfb16d%2Ffa1bb321-c095-45c9-98d3-1357539e2157%2Fbm9xam_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A random sample of 90 eighth grade students' scores on a national mathematics assessment test has a mean score of 275. This test result prompts a state school admini
exam is more than 270. Assume that the population standard deviation is 31. At a=0.09, is there enough evidence to support the administrator's claim? Complete parts (e
(a) Write the claim mathematically and identify Ho and H,. Choose the correct answer below.
O A. Ho u2270 (claim)
Hp<270
O B. H us 270 (claim)
Hu> 270
OE Hiu=270 (claim)
H> 270
Oc.
OD. Ho: u=270
Haiu> 270 (claim)
OF
(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.
Reject H.
![sathematics 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
on is 31. At a =0.09, is there enough evidence to support the administrator's claim? Complete parts (a) through (e).
he correct answer below.
OB. Hoi us270 (claim)
Hu> 270
OC. Hus270
Hp> 270 (claim)
OE H:270 (claim)
H> 270
OF. Ho: 270
H 2270 (claim)
mom than 270.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4cd5044c-2f43-430a-93d2-b0b38bcfb16d%2Ffa1bb321-c095-45c9-98d3-1357539e2157%2Fifdtev_processed.jpeg&w=3840&q=75)
Transcribed Image Text:sathematics 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
on is 31. At a =0.09, is there enough evidence to support the administrator's claim? Complete parts (a) through (e).
he correct answer below.
OB. Hoi us270 (claim)
Hu> 270
OC. Hus270
Hp> 270 (claim)
OE H:270 (claim)
H> 270
OF. Ho: 270
H 2270 (claim)
mom than 270.
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