Question 6 of 40 The prevalence of hypertension in a population is 24 per 1000.

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Question 6 of 40 The prevalence of hypertension in a population is 24 per 1000. If we draw a random sample of 2000 people from this population, how many hypertensive people do we expect to see? B. 24 D. 48 Question 7 of 40 For a sample of 100 hypertensi s FALSE? patients, o hnd that a 5% fdence iter al of syst c blood pressure is 130, 1501 which O of the following stat nt lf a drug is given that makes a patient's blood pressure more variable, then the resulting conf dence interval of the post-treatment blood pressure B If a drug s given to exactly reduce the blood pressure of every patient by 10 units, the cont donce interval of the post-treatment blood pressn C. A 95% confidence interval based on a random subset of 50 patients is going to be wider. will be wider. * be narrower. D. A 90% confidence interval of the blood pressure based on the same data is going to be narrower

Explanation / Answer

6) Prevalence = 24 in 1000

There will 24*2 = 48 hypertensive people in a sample of 2000 people

7) Option B: If a drug is given to exactly reduce the blood pressure of every patient by 10 units, the confidence interval of the post treatment blood pressure will be narrower.

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