Hi I need help with my homework Assume you have a population of 500 hospital workers who are known to have tuberculosis (TB) and another 500 hospital workers who are known to be healthy, i.e., free of TB disease. Use the table below to calculate the PPV and NPV of the tuberculin skin test (TST) and provide a one-sentence interpretation for each of the values. TB Healthy Total TST (+) 445 70 515 TST (-) 55 430 485 Total 500 500 1,000 9. Calculate the positive predictive value (PPV) of the screening test. Express as a percentage and round to the nearest whole number (show work). 10. Interpret your PPV result in 1 sentence

11. Calculate the negative predictive value (NPV) of the screening test. Express as a percentage and round to the nearest whole number (show work). 12. Interpret your NPV result in 1 sentence.