A compute the sensitivity of the testnbspb compute the

Question

The following table shows the results of a screening test hypothesized to detect persons at risk for side effects of a new cosmetic surgery

                             side effects positive       side effects absent                total
Screen Positive                   12                                 6                              18
screen negative                   85                                204                           289
total                                    97                                210                           307


Please:

a. compute the sensitivity of the test
b. compute the specificity of the test
c. compute the false postive fraction
d. compute the false negatie fraction