The superintendent of a large school district, having once had acourse in probability and statistics, believes that the number ofteachers absent on any given day has a Poisson distribution withparameter ๐. Use the accompanying data on absences for 50 daysto obtain a 95% large-sample CI for ๐.
[Hint: The mean and variance of a Poisson variable bothequal ๐, so
Z =
has approximately a standard normal distribution. Now proceed asin the derivation of the interval for p bymaking a probability statement (withprobability 1 โ ๐ผ) and solving the resultinginequalities for ๐.] (Round your answers to two decimalplaces.)
The superintendent of a large school district, having once had a course in probability and statistics, believes that the
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