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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

You may need to use the appropriate appendix table or technology to answer this question.

Consider the following hypothesis test.

H₀: p = 0.30

H_a: p ≠ 0.30

A sample of 500 provided a sample proportion

p = 0.275.

(a)

Compute the value of the test statistic. (Round your answer to two decimal places.)

-1.22

(b)

What is the p-value? (Round your answer to four decimal places.)

p-value = 0.2225

(c)

? = 0.05,

(d) - I only need help with Question D

What is the rejection rule using the critical value? (Round your answer to two decimal places. If the test is one-tailed, enter NONE for the unused tail.)

test statistic≤

test statistic≥

What is your conclusion?

Reject H₀. There is sufficient evidence to conclude that p ≠ 0.30.Do not reject H₀. There is sufficient evidence to conclude that p ≠ 0.30. Reject H₀. There is insufficient evidence to conclude that p ≠ 0.30.Do not reject H₀. There is insufficient evidence to conclude that p ≠ 0.30.

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