Solved: The superintendent of a large school district,
Chapter 7, Problem 26E(choose chapter or problem)
Problem 26E
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 Poissondistribution with parameter m. Use the accompanying data on absences for 50 days to obtain a large-sample CI for μ. [Hint: The mean and variance of a Poisson variable both equal μ, so
has approximately a standard normal distribution. Now proceed as in the derivation of the interval for p by making a probability statement (with probability 1 – α) and solving the resulting inequalities for μ –– see the argument just after (7.10).]
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