Test B is used to screen for the same disease in a different population of 10,000 persons. The data are summarized below.

Disease Status

Screening Status Ill Healthy Total

+ve 640 1400 2040

-Ve 360 7600 7960

Total 1000 9000 10,000

Using these data, calculate the following and interpret the results in a sentence.

a) Sensitivity

b) False Negative Rate

c) Specificity

d) False Positive Rate

e) Positive Predictive Value

f) Negative Predictive Value

g) Prevalence of Disease