guys help me out with this question.... i ve no clue to how can this be solved.... btw this is a usmlerx qmax question:
Q: A researcher has designed a new test to screen for hereditary spherocytosis. The test has a false-negative rate of 0 and a false-positive rate of 1/16 (6.25%). Suppose the new test is to be used in a population in which the frequency of the disease-causing allele is 0.2.
What is the positive predictive value of the diagnostic test in this setting?
A: 40%
B: 80%
C: 90%
D: 93.75%
E: 100%
Q: A researcher has designed a new test to screen for hereditary spherocytosis. The test has a false-negative rate of 0 and a false-positive rate of 1/16 (6.25%). Suppose the new test is to be used in a population in which the frequency of the disease-causing allele is 0.2.
What is the positive predictive value of the diagnostic test in this setting?
A: 40%
B: 80%
C: 90%
D: 93.75%
E: 100%