68. Another practice example. Hiv + Hiv - total positive 378 397 775 negative 2 98,823 98,825 total 380 99,220 100,000The website is below where you can practice calculating the validity measures. Source: https://www.med.soton.ac.uk/stats_eLearning/sensitivityspecificityppvandnpvquiz/index.html Sensitivity =____________________________________________________ Specificity =____________________________________________________ Positive predictive Value (+) =______________________________________ Negative predictive Value () =_____________________________________ How good is this screening test for the condition? _____________________________________________________________