Question 4) Let say a medical research team examine a screening test for breast cancer. The following is the

Data of test by breast cancer status:( each part 3 point , total 12 points)

Test result	Breast Cancer
Yes	No
Positive	45	10
Negative	5	440
Total	50	450

1. What is the sensitivity of test?

1. .90

2. .20

3. .02

4. .98

1. What is the specificity of test?

1. .90

2. .20

3. .02

4. .98

1. What is the false negative and false positive?

1. .10 and .02

2. .15 and .25

3. .25 and .06

4. .15 and .15

1. What is the positive predictive value and negative predictive value?

1. .88 and .90

2. .12 and .88

3. .18 and .12

4. .82 and .99