This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Statistical Errors, p-value, Subject name: Social & Preventive Medicine
[{'content': 'To see if sample mean is an accurate estimate of Population mean, we use: \nSelect and explain. \nA. Geometric mean, B. Range, C. Detion, D. Standard error', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Standard error: Gives detion of each sample mean from population mean. Sample mean is known as Statistic. Population mean is known as parameter.', 'role': 'assistant'}]