A random sample of 89 eighth grade students' scores on a national mathematics assessment test has a mean score of 289 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 285 Assume that the population standard deviation is 35. At α=0.04 is there enough evidence to support the administrator's claim? Complete parts (a) through (e). (a) Write the claim mathematically and identify Upper H0 and Upper Ha (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. A) Fail to reject Upper H0 B) mReject Upper H0 (e) Interpret your decision in the context of the original claim. At the 4% significance level, there ▼ is/is not enough evidence to ▼ support/reject the administrator's claim that the mean score for the state's eighth graders on the exam is more than 285
A random sample of 89 eighth grade students' scores on a national mathematics assessment test has a mean score of 289 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 285 Assume that the population standard deviation is 35. At α=0.04 is there enough evidence to support the administrator's claim? Complete parts (a) through (e). (a) Write the claim mathematically and identify Upper H0 and Upper Ha (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. A) Fail to reject Upper H0 B) mReject Upper H0 (e) Interpret your decision in the context of the original claim. At the 4% significance level, there ▼ is/is not enough evidence to ▼ support/reject the administrator's claim that the mean score for the state's eighth graders on the exam is more than 285
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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Question
A random sample of
89
eighth grade students' scores on a national mathematics assessment test has a mean score of
289
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
285
Assume that the population standard deviation is
35.
At
α=0.04
is there enough evidence to support the administrator's claim? Complete parts (a) through (e).(a) Write the claim mathematically and identify
Upper H0
and
Upper Ha
(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.
A) Fail to reject
Upper H0
B) mReject
Upper H0(e) Interpret your decision in the context of the original claim.
At the
enough evidence to
the administrator's claim that the mean score for the state's eighth graders on the exam is more than
4%
significance level, there
▼
is/is not▼
support/reject285
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