Let X and Y be independentandexponentiallydistributedwith E(X) = og E(Y ) =3. Considerthefollowingtwoestimatorsof : is thegammafunction.
Question:
Let X and Y be independentandexponentiallydistributedwith E(X) = λ og E(Y ) =3λ. Considerthefollowingtwoestimatorsof λ:
is thegammafunction.
a) Whichoftheseestimatorsareunbiasedestimatorsof λ?
b) Determinethevarianceforbothoftheseestimators;
c) ComparethevariancestotheCramér–Raolowerboundandcommentontheres-
ult;
d) Whichoftheestimatorshasthesmallestmeansquareerror?
e) Confirmthefindingsaboveviaasimulationexperiment.
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