The following data is from an actual longitudinal study to evaluate the accuracy of the Target S RdRP (kit) screening tool for COVID-19 infection (Bisoffi et al., 2020). Use the 2 x 2 table below to calculate sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV). DO NOT include the "9%" symbol next to your answer Yes COVID-19 No COVID-19 Infection Infection Total Screening Test (a) (b) (a + b) Positive 78 0 78 Screening test (c) (d) (c + d) Negative 7 261 268 (a+ c) (b + d) (a+b+c+ d) Total 85 261 346Question 1 (0.5 points) Round to the nearest 10th and do not put the "%" symbol after your answer. Sensitivity = Question 2 (0.5 points) Round to the whole number and do not put the "%" symbol after your answer. Specificity =Question 3 (0.5 points) Round to the whole number and do not put the "%" symbol after your answer. PPV = Question 4 (0.5 points) Round to the nearest whole number and do not put the "%" symbol after your answer. NPV =