Using the information below, perform any tasks requested, calculate the measures requested, and answer any follow- up questions. Problem 1. A screening test for breast cancer was administered in a group of 1000 women 40 years of age and older. Among the 120 women with the disease, 95 screened positive. Among the 880 women without the disease, 75 screened positive. 1. Using the space below, construct an appropriate fourfold table, including appropriate column/row titles, column/row labels, and marginal totals. [0] (13 points) A C A+C B A+B D C+D B+D A+B+C+D Calculate/determine the following using the data from Problem 1 [2, 100] (2 points each) 2. Sensitivity 3. Specificity 4. Positive Predictive Value 5. Negative Predictive Value Questions 6. Would you consider this screening test valid? Why or why not? (2 points) 7. How do you interpret each of the calculations above (items 2-5)? (8 points) 8. How many true positives are there? [0] (1 point) 9. How many true negatives are there? [0] (1 point) 10. How many false positives are there? [0] (1 point) 11. How many false negatives are there? [0] (1 point)