A medical center studied 1,000 consecutive women with a palpable breast mass.All of the women underwent biopsy and mammography procedures.600 womenhad a biopsy positive for cancer, of those 410 also had a positive mammogram.400 had a negative biopsy.Of these 400 women, 60 had a positive mammogram.

After analyzing the study, you conclude that the sensitivity of mammography is :

a)190/600 or 32%

b)340/530 or 64%

c)340/400 or 85%

d)60/400 or 15%

e)410/600 or 68%

After analyzing the study, you conclude that the specificity of mammography is :

f)190/600 or 32%

g)340/530 or 64%

h)340/400 or 85%

i)60/400 or 15%

j)410/600 or 68%

Calculate the positive predictive value of this test (2 points) and provide an interpretation of your result