Answered: Sleep apnea is a disorder in which…

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

Sleep apnea is a disorder in which there are
pauses in breathing during sleep. People with this
condition must wake up frequently to breathe. In
a sample of 427 people aged 65 and over, 104 of
them had sleep apnea.
a. Find a point estimate for the population
proportion of those aged 65 and over who have
sleep apnea.
b. Construct a 99% confidence interval for the
proportion of those aged 65 and over who have
sleep apnea.
c. In another study, medical researchers concluded
that more than 9% of elderly people have sleep
apnea. Based on the confidence interval, does it
appear that more than 9% of people aged 65 and
over have sleep apnea? Explain.

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