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a.A study was conducted to examine the relationship between hypertension and car

ID: 3317901 • Letter: A

Question

a.A study was conducted to examine the relationship between hypertension and cardiovascular disease (CVD). A total of 4,434 individuals were recruited for this study and were asked about their hypertension status and whether they had ever been diagnosed with CVD. There were 1,182 individuals that were free of hypertension and 1,017 of them did not have a CVD diagnosis. There were 1,157 individuals that were diagnosed with CVD and 992 of them were living with hypertension. Let p1 be the population proportion of individuals without hypertension who have a CVD diagnosis and p2 be the population proportion of individuals with hypertension who have a CVD diagnosis.

b.Provide estimates for p1 and p2

Explanation / Answer

p1 = population proportion of individuals without hypertension who have a CVD diagnosis.
Thus, Estimate of p1 = sample proportion of individuals without hypertension who have a CVD diagnosis
= (1157-992)/4434 = 165/4434 = 0.0372

p2 = population proportion of individuals with hypertension who have a CVD diagnosis.
Thus, Estimate of p2 = sample proportion of individuals with hypertension who have a CVD diagnosis
= 992/4434 = 0.2237

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