system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A researcher faces the task of calculating the mean height of male students in an undergraduate class containing a total of 2,000 male students and 1,750 female students. The mean height of a sample of male students is computed as 176 cm (69.3 in), with a standard deviation of 7 cm (2.8 in). The researcher now tries to calculate the confidence interval for the mean height of the male students in the undergraduate class. Which additional data will be needed for this calculation?
assistant
Total sample size of the study