II. Reasoning Questions (4 points each) Use the information in the contingency t

Question

II. Reasoning Questions (4 points each) Use the information in the contingency tables to make recommendations through reasoning. Cutoff B Cutoff a Criterion Test Criterion Test Pass Fail Pass Fail 60 2 37 (.37) 14 51 (14) | (.51) 2H | | | (.60) 17 (17(77) 16 49 41 (.08) (41) | (49) E E (.07) (16) 23 (.23) 100 55 100 45 (45) 67 (.67) (.55) (33) positive (- 1. Which cutoff score is more likely to generate false classifications classifying nonmasters as masters)? Where to find the information - N2 2. Which cutoff score is more likely to generate false negative classification (classifying masters as non masters)? Where to find information - Ns 3. What recommendation can you make to the teacher and why? IV. Bonus (5 points each) Calculating P and K

Explanation / Answer

Sol:

cutoff test A:

false positive=14

cutoff test B:

false positive-17

cutoff test A

false negative =8

cutoff test B

false negative=7

recommendation:

the pass marks are 37 and fail marks are 41 for cutoff A

the pass marks are 60 and fail marks are 16 for cutoff B

tp(true positive) fp(false positive fn(false negative tn(true negative)

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