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Name: A random sample of 85 eighth grade students' scores on a national mat
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Description: A random sample of 85 eighth grade students' scores on a national mathematics assessment test has a mean score of 276. This test result prompts a state school administrator to declare that the mean score for the state's eighth graders on this exam

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 85 eighth grade students' scores on a national mathematics assessment test has a mean score of 276. 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 31. At α=0.08, is there enough evidence to support the administrator's Claim?

1.Decide whether to reject or fail to reject the null hypothesis.

Choose A or B

A.Reject H₀

B.Fail to reject H₀

2.Interpret your decision in the context of the original claim.

choose A or B

At the

significance level, there

▼

(A)is

(B)is not

enough evidence to

▼

(A)support

(B)reject

the administrator's claim that the mean score for the state's eighth graders on the exam is more than

270.

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