A random sample of77eighth grade students' scores on a national mathematics assessment test has a mean score of282.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 than275.Assume that the population standard deviation is32.Atα=0.14,is there enough evidence to support the administrator's claim? Complete parts (a) through (e).(a) Write the claim mathematically and identifyH0andHa.Choose the correct answer below. A.H0:μ=275(claim)Ha:μ>275 B.H0:μ≤275(claim)Ha:μ>275Your answer is not correct. C.H0:μ<275Ha:μ≥275(claim) D.H0:μ=275Ha:μ>275(claim) E.H0:μ≥275(claim)Ha:μ<275 F.H0:μ≤275Ha:μ>275(claim)This is the correct answer.(b) Find the standardized test statistic z, and its corresponding area. z=nothing(Round to two decimal places as needed.) Enter your answer in the answer box and then click Check Answer. 3parts remaining Clear AllCheck Answer

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Description: A random sample of77eighth grade students' scores on a national mathematics assessment test has a mean score of282.This test result prompts a state school administrator to declare that the mean score for the state's eighth graders on this exam is m

Given information: μ=275, σ=32n=77, α=0.14x¯=282 a) Null hypothesis: H0 : μ=275 Alternative…

Answered: A random sample of 77 eighth grade…

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

eighth grade students' scores on a national mathematics assessment test has a mean score of

282.

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

275.

Assume that the population standard deviation is

32.

α=0.14,

is there enough evidence to support the administrator's claim? Complete parts (a) through (e).

(a) Write the claim mathematically and identify

and

Ha.

Choose the correct answer below.

H0:

μ=275

(claim)

Ha:

μ>275

H0:

μ≤275

(claim)

Ha:

μ>275

Your answer is not correct.

H0:

μ<275

Ha:

μ≥275

(claim)

H0:

μ=275

Ha:

μ>275

(claim)

H0:

μ≥275

(claim)

Ha:

μ<275

H0:

μ≤275

Ha:

μ>275

(claim)

This is the correct answer.

(b) Find the standardized test statistic z, and its corresponding area.

z=nothing

(Round to two decimal places as needed.)

Enter your answer in the answer box and then click Check Answer.

parts remaining

Clear All

Check Answer

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