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A new SARS-CoV-2 test (TEST X) is going to be launched soon by a major pharmaceutical company. The pharmaceutical company wants to assess the accuracy
A new SARS-CoV-2 test (TEST X) is going to be launched soon by a major pharmaceutical company. The pharmaceutical company wants to assess the accuracy of the test based on a sample of individuals of size 1000. A panel of doctors/ pathologists were hired and they were given the responsibility to assess the patients independently (based on already marketed tests or chest X-rays or subjective symptomatic evaluations) and declare them as 'COVID +' or 'COVID -. The assessments done by the panel of doctors/pathologists are to be considered as the ultimate 'Truth'. 'No test results are inconclusive.' after The assessments done by the panel of doctors/ pathologists are to be considered as the ultimate 'Truth'. It was observed that: . 170 individuals were found 'COVID +' by the panel of doctors/pathologists. ii. Out of those 170 individuals found 'COVID +' by the panel of doctors/pathologists, 145 were also found to be 'positive' by the TEST X. ili. There were 38 individuals who were found 'Positive' by the TEST X but were found 'COVID -' by the panel of doctors/pathologists.What is the probability of individual being 'truly' positive, i.e., declared 'COVID +' by the panel of doctors/ pathologists given that the person has tested 'positive' by the TEST X? Select one: O a. 0.1700 O b. 0.1567 O c. 0.7923/ O d. 0.8529
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