Actuarial Outpost May 2010 discussion
 Register Blogs Wiki FAQ Calendar Search Today's Posts Mark Forums Read
 FlashChat Actuarial Discussion Preliminary Exams CAS/SOA Exams Cyberchat Around the World Suggestions

 CAS 3 - specific material Please keep posts regarding material common to both exams in the upper forum

#41
05-07-2010, 06:32 PM
 spencerhs5 Member Join Date: Jan 2007 Posts: 1,048

Quote:
 Originally Posted by jesusislord yea i just created a matrix with 0s, 1s and 2s in the rows and columns. then filled in the approp numbers. i got like 7.11111 for the chi square stat. then if you look it up on the table it had 4 dof. so it was less than the 95% critical value. so i choose E.
damn thats what i did and second guessed myself on... i thinmk my stat was 6.8 something though, but either way it was E
#42
05-07-2010, 06:32 PM
 jesusislord Member CAS Join Date: Aug 2006 Studying for none Posts: 1,258

Quote:
 Originally Posted by spencerhs5 was the 10 pay whole life something special for h pay? i just did u/(u+d)=(1-e^(-nd))/d)*X and solved for X where d is delta not discount
that question was str8 forward premium calculation. it was a 10 pay whole life continious insurance. so solve for whole life and a 10 yr temporary continious annuity. divide and there you go.
__________________
God is real and His love is unconditional.
#43
05-07-2010, 06:33 PM
 spencerhs5 Member Join Date: Jan 2007 Posts: 1,048

Quote:
 Originally Posted by jesusislord did any1 try that stupid unbiased estimator question. i kept looking at it over and over. never did come up with a conclusion or a guess.
option two was the only one that summed to 1 which would be 1 theta -theta =0 so unbiasted.
#44
05-07-2010, 06:33 PM
 jesusislord Member CAS Join Date: Aug 2006 Studying for none Posts: 1,258

did any1 get a ton of C's?
__________________
God is real and His love is unconditional.
#45
05-07-2010, 06:34 PM
 jesusislord Member CAS Join Date: Aug 2006 Studying for none Posts: 1,258

Quote:
 Originally Posted by spencerhs5 option two was the only one that summed to 1 which would be 1 theta -theta =0 so unbiasted.
yea i summed them all up but that was about as far as i got. o well.
__________________
God is real and His love is unconditional.
#46
05-07-2010, 06:34 PM
 spencerhs5 Member Join Date: Jan 2007 Posts: 1,048

Quote:
 Originally Posted by jesusislord did any1 get a ton of C's?
First 3 were C, many C's A's and E's only 1 or two b's and d's it seemed like
#47
05-07-2010, 06:35 PM
 aorl Member Join Date: May 2007 Location: New Jersey Studying for fun Favorite beer: cold Posts: 168

Quote:
 Originally Posted by jesusislord did any1 try that stupid unbiased estimator question. i kept looking at it over and over. never did come up with a conclusion or a guess.
Yeah at first I did a WTF and skipped it, but then I realized that it just wanted E(theta hat) = theta, and since E(X) = theta,

E(theta hat) = E(sum(a_i * x_i))
= sum(a_i * theta) <=because E[x_i] = theta
so then the a_i's just have to sum to 1 to get E[theta hat] = theta

right?
#48
05-07-2010, 06:35 PM
 (/iropracy Member CAS Join Date: Nov 2008 Location: East College: Post Graduate Posts: 374

Quote:
 Originally Posted by spencerhs5 option two was the only one that summed to 1 which would be 1 theta -theta =0 so unbiasted.
Mathematically sound I thought... I agree.
#49
05-07-2010, 06:36 PM
 (/iropracy Member CAS Join Date: Nov 2008 Location: East College: Post Graduate Posts: 374

Many C's
#50
05-07-2010, 06:37 PM
 aorl Member Join Date: May 2007 Location: New Jersey Studying for fun Favorite beer: cold Posts: 168

I now realize I got the chi-sq matrix question wrong. I picked A.

Also felt like I got a ton of C's, but I only got 8 in reality. Which is well above expected C's, but it felt like more than 8.

 Thread Tools Display Modes Linear Mode

 Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off

All times are GMT -4. The time now is 05:52 AM.

 -- Default Style - Fluid Width ---- Default Style - Fixed Width ---- Old Default Style ---- Easy on the eyes ---- Smooth Darkness ---- Chestnut ---- Apple-ish Style ---- If Apples were blue ---- If Apples were green ---- If Apples were purple ---- Halloween 2007 ---- B&W ---- Halloween ---- AO Christmas Theme ---- Turkey Day Theme ---- AO 2007 beta ---- 4th Of July Contact Us - Actuarial Outpost - Archive - Privacy Statement - Top