QuestionHomework * 4: $7(1,2,3,4) 8(2,3,4)$ Question 32 of 40 (1 point) I Question Attempt: 1 of 3 Jonathan 2 23 24 25 26 28 29 30 $\checkmark 31$ $=32$ Español 33
Sleep apnea: 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 420 people aged 65 and over, 114 of them had sleep apnea.
Part 1 of 3 (a) Find a point estimate for the population proportion of those aged 65 and over who have sleep apnea. Round the answer to three decimal places.
The point estimate for the population proportion of those aged 65 and over who have sleep apnea is 0.271 .
Part 2 of 3 (b) Construct a $99.8 \%$ confidence interval for the proportion of those aged 65 and over who have sleep apnea. Round the answer to three decimal places.
A $99.8 \%$ confidence interval for the proportion of those aged 65 and over who have sleep apnea is $0.204<p<0.338$.
Part: $2 / 3$
Part 3 of 3 (c) In another study, medical researchers concluded that more than $12 \%$ of elderly people have sleep apnea. Based on the confidence interval, does it appear that more than $12 \%$ of people aged 65 and over have sleep apnea? Explain.
Since all of the values in the confidence interval are $\square$ 0.12 , the confidence interval (Choose one) contradict the claim. $\square$ Skip Part Check Save For Later Submit Assignment - 2024 McGraw Hill LLC. All Rights Reserved. Terms of Use I Privacy Center I Accessibili