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Math Help - Unbiased Estimates

  1. #1
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    Exclamation Unbiased Estimates Need Help!!!

    A Geiger counter was set up in the physics laboratory to record the number of alpha particle emissions of carbon-14 in half a second. Ten observations yielded the following data:

    4, 6 , 9 , 6 , 10 , 11 , 6 , 3 , 7 , 10

    Give the value of an unbiased estimate (lambda), the mean number of counts per half second, assuming that these are observations of a Poisson random variable.


    Does anyone know how to solve this problem? Me and a couple class mates are lost on it and we're in dire need.
    Last edited by isuckatprobability; November 21st 2008 at 10:33 AM.
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  2. #2
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    Quote Originally Posted by isuckatprobability View Post
    A Geiger counter was set up in the physics laboratory to record the number of alpha particle emissions of carbon-14 in half a second. Ten observations yielded the following data:

    4, 6 , 9 , 6 , 10 , 11 , 6 , 3 , 7 , 10

    Give the value of an unbiased estimate (lambda), the mean number of counts per half second, assuming that these are observations of a Poisson random variable.


    Does anyone know how to solve this problem? Me and a couple class mates are lost on it and we're in dire need.
    Won't it just be the mean of the data .... ?
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