I am having trouble with 4,5,6 . I think I got 1,2,3 right

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. Please answer the following questions. Be sure to include your formulas (show your work)! positive Neg Diagnosed No diagnosed diabetes diabetes Finger-stick positive (+) T 40 TP 60 Finger stick negative (-) 1- 10 / 140 F N FP 1. How many people are the false negatives? (0.5 point) TN 140 10 - False positive TN+ FP 410 2. How many people are the true positives? (0.5 point) 40 - True positive 3. What is the specificity of the finger-stick screening test? (1 point) 140 FP 140 / 200 x 100 = - 70 ) TN/ ( TN + ED ) 7./ 18 * 100 70/ 0 4. What is the sensitivity of the finger-stick screening test? (1 point) 140 + 60 TP AR TEN HOXNOT 49 TP / TP + P + FN 40/ 100 20 /40 +60 40+60 5. What is the predictive value positive (+) of the finger-stick screening test? (1 point) 40/50-.80 7/40 + 10 40 TPHP+ FP 40+10 6. What is the predictive value negative (-) of the finger-stick screening test? (1 point) 140 60 TP / TP +FP 40 40 10 40 / 50 TP / TP + FP 140 60 TN 1 TN/ TN+ FN