Question

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 423 people aged 65 and over, 117 of them had sleep apnea. (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 . (b) Construct a 98% confidence interval for the proportion of those aged 65 and over who have sleep apnea. Round the answer to three decimal places. A 98% confidence interval for the proportion of those aged 65 and over who have sleep apnea is < p < . (c) In another study, medical researchers concluded that more than 33% of elderly people have sleep apnea. Based on the confidence interval, does it appear that more than 33% of people aged 65 and over have sleep apnea? Explain. Since all of the values in the confidence interval are (Choose one) 0.33, the confidence interval (Choose one) contradict the claim.

          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 423 people aged 65 and over, 117 of them had sleep apnea.

(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 .

(b) Construct a 98% confidence interval for the proportion of those aged 65 and over who have sleep apnea. Round the answer to three decimal places.
A 98% confidence interval for the proportion of those aged 65 and over who have sleep apnea is < p < .

(c) In another study, medical researchers concluded that more than 33% of elderly people have sleep apnea. Based on the confidence interval, does it appear that more than 33% of people aged 65 and over have sleep apnea? Explain.
Since all of the values in the confidence interval are (Choose one) 0.33, the confidence interval (Choose one) contradict the claim.

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 423 people aged 65 and over, 117 of them had sleep apnea.

(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 .

(b) Construct a 98% confidence interval for the proportion of those aged 65 and over who have sleep apnea. Round the answer to three decimal places.
A 98% confidence interval for the proportion of those aged 65 and over who have sleep apnea is < p < .

(c) In another study, medical researchers concluded that more than 33% of elderly people have sleep apnea. Based on the confidence interval, does it appear that more than 33% of people aged 65 and over have sleep apnea? Explain.
Since all of the values in the confidence interval are (Choose one) 0.33, the confidence interval (Choose one) contradict the claim.

Added by Anthony J.

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