Answered: Write a statement that correctly…

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

In a study of cell phone use and brain hemispheric dominance, an Internet survey was e-mailed to 2482 subjects randomly selected from an online group involved with ears. 1095 surveys were returned. Construct a 90% confidence interval for the proportion of returned surveys.

a) p = .441

b) E= 0.016

c) Construct the confidence interval= .425< p < .457

***QUESTION**

Write a statement that correctly interprets the confidence interval. Choose the correct answer below.

A. 90%

of sample proportions will fall between the lower bound and the upper bound.

B. There is a

90%

chance that the true value of the population proportion will fall between the lower bound and the upper bound.

C. One has 90%

confidence that the interval from the lower bound to the upper bound actually does contain the true value of the population proportion.

D. One has 90% confidence that the sample proportion is equal to the population proportion.

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