Thursday

April 17, 2014

April 17, 2014

Posted by **ruth** on Thursday, August 10, 2006 at 2:04am.

U = X1+X2+X3+X4;

V = (X2)^2+(X3)^2+(X4)^2+(X5)^2

and W = U/sqrtV.

(a) Name the distribution of U/4 and V/(variance) and give the values of their parameters.

(b) (i) Compute k such that kW has a t-distribution.

(ii) Give the number of degrees of freedom of this t-distribution.

(c) Compute E(V).

**Related Questions**

Linear Algebra - Express the solutions of the following systems in terms of the ...

math - How many ordered tuples of 7 integers x1,x2,x3,x4,x5,x6,x7 are there, ...

Math - Find the augmented matrix for each of the following systems of linear ...

maths - Write the system as a matrix equation and solve using inverses. x1 + 2x2...

Math - Hi: I was wondering how I would even start to solve a problem like this. ...

Math - Using the binomial theorem, Find the first three terms in the expansion ...

Math - Using the binomial theorem, Find the first three terms in the expansion ...

Math - Went ahead and did the HW the teach recommended but she did not post the ...

Math - Which of the following are linear equations in x1, x2 and x3? (a) x1 + ...

Math - Is this equation right is it worked correctly x 1 ----- - -------- x2-4 ...