In: Statistics and Probability
The random variable X is distributed with pdf
fX(x, θ) = c*x*exp(-(x/θ)2), where x>0 and θ>0.
a) What is the constant c?
b) We consider parameter θ is a number. What is MLE and MOM of θ? Assume you have an i.i.d. sample. Is MOM unbiased?
c) Please calculate the Crameer-Rao Lower Bound (CRLB). Compare the variance of MOM with Crameer-Rao Lower Bound (CRLB).