Question: computation assignment - Sensitivity, Specificity, and Predictive Values A total of 250 study subjects were enrolled in a study to examine validity and performance of

computation assignment - Sensitivity, Specificity, and Predictive Values

A total of 250 study subjects were enrolled in a study to examine validity and performance of a new finger stick test for diabetes. A fasting glucose test (gold standard test) was given to diagnose diabetes.

Diagnosed diabetes No Diagnosed Diabetes

Finger stick positive 40 60

Finger stick negative 10 140

1. How many people are the false negatives?

2. How many people are the true positives?

3. What is the specificity of the finger-stick screening test?

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