Sleep apnea: Sleep apnea is a disorder in which there are pauses in breathing during sleep. People with this condition must wake (a) Find a point estimate for the population proportion of those aged 65 and over who have sleep apnea. Round the answer up frequently to breathe. In a sample of 424 people aged 65 and over, 118 of them had sleep apnea. to three decimal places. The point estimate for the population proportion of those aged 65 and over who have sleep apnea is 0.278 . (b) Construct a 95% condence interval for the proportion of those aged 65 and over who have sleep apnea. Round the answer to three decimal places. A 95% confidence Interval for the proportion of those aged 65 and over who have sleep apnea Is 0.236