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Mathematics, 24.12.2019 02:31, triciazeeck62311
Each of 174 newly manufactured items is examined and the number of scratches per item is recorded (the items are supposed to be free of scratches), yielding the following data:
number of scratches per item 0 1 2 3 4 5 6 7
observed frequency 24 34 48 33 18 7 9 1
let x = the number of scratches on a randomly chosen item, and assume that x has a poisson distribution with parameter ΞΌ.
(a) find an unbiased estimator of ? and compute the estimate for the data. [hint: e(x) = ? for x poisson, so
e(x) = ? ]
(b) what is the standard deviation (standard error) of your estimator? compute the estimated standard error. [hint: ? x2 = ? for x poisson.]
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Answers: 2
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Each of 174 newly manufactured items is examined and the number of scratches per item is recorded (t...
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