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 u. Use the accompanying data on absences for 50 days to obtain a 95% large-sample CI for μ. Number of absences 012 3 4 5 6 7 8 9 10 Frequency 1 4 8 10 8 6 6 3 2 1 1 Hint: The mean and variance of a Poisson variable both equal μ, so Z = x-μ √ μ/n 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 - a) and solving the resulting inequalities for u.] (Round your answers to two decimal places.) 5.66 4.42 X 1
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 u. Use the accompanying data on absences for 50 days to obtain a 95% large-sample CI for μ. Number of absences 012 3 4 5 6 7 8 9 10 Frequency 1 4 8 10 8 6 6 3 2 1 1 Hint: The mean and variance of a Poisson variable both equal μ, so Z = x-μ √ μ/n 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 - a) and solving the resulting inequalities for u.] (Round your answers to two decimal places.) 5.66 4.42 X 1
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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