Dc 18 Exercise 4 3 Suppose We Want To Check The Accuracy Of Self Reported Diagnoses Of Angina By Getting Further Medi 1 (53.07 KiB) Viewed 21 times
Dc 18 Exercise 4 3 Suppose We Want To Check The Accuracy Of Self Reported Diagnoses Of Angina By Getting Further Medi 2 (27.42 KiB) Viewed 21 times
DC = 18 Exercise 4.3. Suppose we want to check the accuracy of self-reported diagnoses of angina by getting further medical records on a subset of the cases. (a) If we have DGC = then how many ways can we select these cases if order of selection matters? reported cases of angina and we want to select 5 for further review, (b) In ( a ) if order of selection does not matter. Exercise 4.4. Newboms were screened for human immunodeficiency virus (HIV or AIDS) in five Massachusetts hospitals. Complete the following table to get scrambled data as: Hospital Lype Number Tested Number Positive Number positive (per (Scrambled data) 1000) using scrambled data A Inner City 3,741-DGC = 30 2 B Urban/suburban 11,864-5(DGC)= 31 2 Urban/suburban 5.006-2(DGC) 11 2 D Suburban/rural 3,596-(DGC) 1 2 E Suburban/rural 6,501 -4DGC) 8 ? In answering the following from (a) to (e), use the scrambled data (number tested). ( a ) If 100 newborns are screened at the inner-city hospital, then what is the exact binomial probability of 2 HIV-positive test results? (Hint: Apply Binomial Formula)
DOC - 43 (b) If 100 newborns are screened at inner-city hospital, then what is the exact binomial probability of at least 3 HIV-positive test results? (Hint: Apply Binomial Formula) (c) Answer ( a ) using an approximation rather than an exact probability. (Hint: Apply Poisson Formula) (d) Answer (b) using an approximation rather than an exact probability.
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!