Use this information to answer questions 49-52.A hospital is training radiologists to read chest x-rays to diagnose tuberculosis.To determine how well the new radiologist is doing, his results are compared to those of a radiologist with 20 years of experience. The results are tabulated below.For Q49 and 51, report your answers as a percentage rounded to the nearest hundredth (e.g. 25.325% = 25.33%). For Question 52, report your answer as a decimal rounded to the nearest hundredth (e.g., 25.325% = 0.25).

The data:

20-year veteran Total Disease No Disease Disease 350 300 650 Newbie No Disease 300 550 850 Total 650 850 1500