The superintendent of a large school district, having once had a course in probability and statistics, believes that the number of teachers absent on any given day has a Poisson distribution with parameter 2. Using the accompa- nying data on absences for 50 days to obtain a large-sample 95% CI for 1. Number of 0 1 2 3 4 5 6 7 8 9 10 absences Frequency 1 4 8 10 8 7 10 5 3 2 1 1