This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'In a population of 100 prevalence of candida glabrata was found to be 80%. If the investigator has to repeat the prevalence with 95% confidence what will the prevalence be \nSelect and explain. \nA. 78-82%, B. 72-88%, C. 76-84%, D. 74-86%', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Confidence Intervals for Population proportions (For 95% Confidence)\nCI = P + 2 SEP = P + 2 √pq/n\nHere, P=0.80 (80%); p=0.80;\nq= 1-p = 1-0.80 = 0.20;\nn=100 CI = 0.80 + 2 √0.8*0.2/100\n= 0.80 + 0.08\n= 0.72, 0.88 (72%, 88%)', 'role': 'assistant'}]