In bacterial counts with a haemacytometer, the number of bacteria per quadrat has a Pois- son distribution with probability mass function f(x), where f(x) = 0Te-® /x! and 0 is to be estimated. If there are many bacteria in a quadrat, it is difficult to count them all, and so the only information recorded is that the number of bacteria exceeds a certain limit c, a large positive integer. In a random sample of n quadrats, it was observed that ng quadrats had x bacteria (x = 0,1, · ·,c) and that m quadrats had more than c bacteria. Show that the maximum likelihood estimate of 0 is given by 1 mf(c) = s In - m - where s = an, and F (c) Σf(a). x=1 x=0
In bacterial counts with a haemacytometer, the number of bacteria per quadrat has a Pois- son distribution with probability mass function f(x), where f(x) = 0Te-® /x! and 0 is to be estimated. If there are many bacteria in a quadrat, it is difficult to count them all, and so the only information recorded is that the number of bacteria exceeds a certain limit c, a large positive integer. In a random sample of n quadrats, it was observed that ng quadrats had x bacteria (x = 0,1, · ·,c) and that m quadrats had more than c bacteria. Show that the maximum likelihood estimate of 0 is given by 1 mf(c) = s In - m - where s = an, and F (c) Σf(a). x=1 x=0
MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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![7. In bacterial counts with a haemacytometer, the number of bacteria per quadrat has a Pois-
son distribution with probability mass function f(x), where f(x) = 0" e- /x! and 0 is to be
estimated. If there are many bacteria in a quadrat, it is difficult to count them all, and so
the only information recorded is that the number of bacteria exceeds a certain limit c, a large
positive integer. In a random sample of n quadrats, it was observed that ng quadrats had
x bacteria (x = 0,1, ., c) and that m quadrats had more than c bacteria. Show that the
maximum likelihood estimate of 0 is given by
-1
mf(c)
1- F(c)]
= s In – m -
where s =
Ecn, and F(c) =E{(x).
x=1
x=0](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F32637d78-b34d-49fd-8d4c-eaa9fac30c60%2Ff42d4888-f6ca-4c97-944f-5affa5792808%2Ff7fibd9_processed.png&w=3840&q=75)
Transcribed Image Text:7. In bacterial counts with a haemacytometer, the number of bacteria per quadrat has a Pois-
son distribution with probability mass function f(x), where f(x) = 0" e- /x! and 0 is to be
estimated. If there are many bacteria in a quadrat, it is difficult to count them all, and so
the only information recorded is that the number of bacteria exceeds a certain limit c, a large
positive integer. In a random sample of n quadrats, it was observed that ng quadrats had
x bacteria (x = 0,1, ., c) and that m quadrats had more than c bacteria. Show that the
maximum likelihood estimate of 0 is given by
-1
mf(c)
1- F(c)]
= s In – m -
where s =
Ecn, and F(c) =E{(x).
x=1
x=0
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