1. What is the specificity of Dr. Drinkwater's screening method? A. 30.0% B. 66.7% C. 70.0% D. 76.9% E. None of the above 2. What is the predictive value negative of Dr. Drinkwater's screening method? A. 48.0% B. 66.7% C. 76.9% D. 83.3% E. None of the above 3. Dr. Drinkwater is now invited to apply her same screening method in Hurtsford, Wisconsin, where the true prevalence of periodontal disease is 25%. What can we say about Dr. Drinkwater's screening method in these two communities? A. The predicitive value negative will be higher in Hurstford, B. the sensitivity will be higher in Owieton, C. the specificity will be higher in Hurtsford, D. A, B and C, E. None of the above

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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1. What is the specificity of Dr. Drinkwater's screening method? A. 30.0% B. 66.7% C. 70.0% D. 76.9% E. None of the above

2. What is the predictive value negative of Dr. Drinkwater's screening method?

A. 48.0%
B. 66.7%
C. 76.9%
D. 83.3%
E. None of the above

3. Dr. Drinkwater is now invited to apply her same screening method in Hurtsford, Wisconsin, where the true prevalence of periodontal disease is 25%. What can we say about Dr. Drinkwater's screening method in these two communities?

A. The predicitive value negative will be higher in Hurstford, B. the sensitivity will be higher in Owieton, C. the specificity will be higher in Hurtsford, D. A, B and C, E. None of the above

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