2. Suppose Xi,X2,..., Xn are i.i.d. random variables such that a e [0, 1] and has...

Question

Question

2. Suppose Xi,X2,..., Xn are i.i.d. random variables such that a e [0, 1] and has the following density function: r (2a) (1a-1 where ? > 0 is the parameter for the distribution. It is known that E(X) = 2 Compute the method of moments estimator for a

math Statistics-And-Probability

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

归ー竺! moment equaln can able to estiomale

Add a comment

Answer 2

Similar Homework Help Questions

The Pareto probability distribution has many applications in economics, biology, and physics. Let β> 0 and...

The Pareto probability distribution has many applications in economics, biology, and physics. Let β> 0 and δ> 0 be the population parameters, and let XI, X2, , Xn be a random sample from the distribution with probability density function zero otherwise. Suppose B is known Recall: a method of moments estimator of δ is δ = the maximum likelihood estimator of δ is δ In In X-in β has an Exponential (0--) distribution Suppose S is known Recall Fx(x) =...
Q3 Suppose X1, X2, ..., Xn are i.i.d. Poisson random variables with expected value ). It...

Q3 Suppose X1, X2, ..., Xn are i.i.d. Poisson random variables with expected value ). It is well-known that X is an unbiased estimator for l because I = E(X). 1. Show that X1+Xn is also an unbiased estimator for \. 2 2. Show that S2 (Xi-X) = is also an unbaised esimator for \. n-1 3. Find MSE(S2). (We will need two facts) E com/questions/2476527/variance-of-sample-variance) 2. Fact 2: For Poisson distribution, E[(X – u)4] 312 + 1. (See for...
Q2 Suppose X1, X2, ..., Xn are i.i.d. Bernoulli random variables with probability of success p....

Q2 Suppose X1, X2, ..., Xn are i.i.d. Bernoulli random variables with probability of success p. It is known that p = ΣΧ; is an unbiased estimator for p. n 1. Find E(@2) and show that p2 is a biased estimator for p. (Hint: make use of the distribution of X, and the fact that Var(Y) = E(Y2) – E(Y)2) 2. Suggest an unbiased estimator for p2. (Hint: use the fact that the sample variance is unbiased for variance.) Xi+2...

Central Limit Theorem: let x1,x2,...,xn be I.I.D. random variables with E(xi)= U Var(xi)= (sigma)^2 defind Z=...

Central Limit Theorem: let x1,x2,...,xn be I.I.D. random variables with E(xi)= U Var(xi)= (sigma)^2 defind Z= x1+x2+...+xn the distribution of Z converges to a gaussian distribution P(Z<=z)=1-Q((z-Uz)/(sigma)^2) Use MATLAB to prove the central limit theorem. To achieve this, you will need to generate N random variables (I.I.D. with the distribution of your choice) and show that the distribution of the sum approaches a Guassian distribution. Plot the distribution and matlab code. Hint: you may find the hist() function helpful
Problem 3 Let Xi, X2,... , Xn be a sequence of binary, i.i.d. random variables. Assume...

Problem 3 Let Xi, X2,... , Xn be a sequence of binary, i.i.d. random variables. Assume P (Xi 1) P (Xi = 0) = 1/2. Let Z be a parity check on seluence Xi, X2, ,X,, that is, Z = X BX2 e (a) Is Z statistically independent of Xi? (Assume n> 1) (b) Are X, X2, ..., Xn 1, Z statistically independent? (c) Are X, X2,.., Xn, Z statistically independent? (d) Is Z statistically independent of Xi if P...
Let λ >0 and suppose that X1,X2,...,Xn be i.i.d. random variables with Xi∼Exp(λ). Find the PDF...

Let λ >0 and suppose that X1,X2,...,Xn be i.i.d. random variables with Xi∼Exp(λ). Find the PDF of X1+···+Xn. Use convolution formula and prove by induction

4. Suppose that X1, X2, . . . , Xn are i.i.d. random variables with density function f(x) = 0 <...

4. Suppose that X1, X2, . . . , Xn are i.i.d. random variables with density function f(x) = 0 < x < 1, > 0 a) Find a sufficient statistic for . Is the statistic minimal sufficient? b) Find the MLE for and verify that it is a function of the statistic in a) c) Find IX() and hence give the CRLB for an unbiased estimator of . pdf means probability distribution function We were unable to transcribe this...
Problem 2: Let Xi, X2,..., Xn be i.i.d. random variables with common probability density function 3...

Problem 2: Let Xi, X2,..., Xn be i.i.d. random variables with common probability density function 3 -6x21 (i) Calculate the MLE of 0 (ii) Find the limit distribution of Vn(0MLE - 0) and use this result to construct an approximate level 1-α C.I. for θ. [Your confidence interval must have an explicit a form as possible for full credit.] (iii) Calculate μι (0)-E0(Xi) and find a level 1-α C.İ. for μι (0) based on the result in (ii) or by...
1. [8 points] Suppose Xi... Xn is a random sample from a Pareto distribution with the...

1. [8 points] Suppose Xi... Xn is a random sample from a Pareto distribution with the density If x > 1 otherwise, where ? > 1, Find the method of moments estimator of ?.

Let Xi,..., Xn iid from random variables with probability density function, (0+1)x" 1, ?>0 (x)o for...

Let Xi,..., Xn iid from random variables with probability density function, (0+1)x" 1, ?>0 (x)o for 0 < otherwise (a) Find the method of moments estimator for ? (b) Find the mle for (e): Under which condition is the mle valid?

2. Suppose Xi,X2,..., Xn are i.i.d. random variables such that a e [0, 1] and has...

Homework Answers

Add Answer to:
2. Suppose Xi,X2,..., Xn are i.i.d. random variables such that a e [0, 1] and has...

Post as a guest

Earn Coins

The Pareto probability distribution has many applications in economics, biology, and physics. Let β> 0 and...

Q3 Suppose X1, X2, ..., Xn are i.i.d. Poisson random variables with expected value ). It...

Q2 Suppose X1, X2, ..., Xn are i.i.d. Bernoulli random variables with probability of success p....

Central Limit Theorem: let x1,x2,...,xn be I.I.D. random variables with E(xi)= U Var(xi)= (sigma)^2 defind Z=...

Problem 3 Let Xi, X2,... , Xn be a sequence of binary, i.i.d. random variables. Assume...

Let λ >0 and suppose that X1,X2,...,Xn be i.i.d. random variables with Xi∼Exp(λ). Find the PDF...

4. Suppose that X1, X2, . . . , Xn are i.i.d. random variables with density function f(x) = 0 <...

Problem 2: Let Xi, X2,..., Xn be i.i.d. random variables with common probability density function 3...

1. [8 points] Suppose Xi... Xn is a random sample from a Pareto distribution with the...

Let Xi,..., Xn iid from random variables with probability density function, (0+1)x" 1, ?>0 (x)o for...

2. Suppose Xi,X2,..., Xn are i.i.d. random variables such that a e [0, 1] and has...

Homework Answers

Add Answer to: 2. Suppose Xi,X2,..., Xn are i.i.d. random variables such that a e [0, 1] and has...

Post as a guest

Earn Coins

Add Answer to:
2. Suppose Xi,X2,..., Xn are i.i.d. random variables such that a e [0, 1] and has...