• We are pleased to announce that the winner of our Feedback Prize Draw for the Winter 2024-25 session and winning £150 of gift vouchers is Zhao Liang Tay. Congratulations to Zhao Liang. If you fancy winning £150 worth of gift vouchers (from a major UK store) for the Summer 2025 exam sitting for just a few minutes of your time throughout the session, please see our website at https://www.acted.co.uk/further-info.html?pat=feedback#feedback-prize for more information on how you can make sure your name is included in the draw at the end of the session.
  • Please be advised that the SP1, SP5 and SP7 X1 deadline is the 14th July and not the 17th June as first stated. Please accept out apologies for any confusion caused.

Partial Credibility - square root rule

S

scr123

Member
How do you derive the result for classical credibility Z =(n/n_s)^0.5

I have done this for n_N and n_x but can't derive it for n_s.
 
I suspect this is not the optimal use of your time. The harder you have to search for a proof online, the less likely it is the examiners will be interested in it. (Never say never though, of course.)

If you really fancy a bit of light bed-time reading, a brief explanation is given at the link below. See footnote 17 on page 8-32.
https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0ahUKEwiZoa2ttubLAhUL2BoKHcSjBDQQFggcMAA&url=https://www.soa.org/files/pdf/C-21-01.pdf&usg=AFQjCNEMEJFgNqj3L4a8UOXWdjb4YEDXcg&sig2=gYrpptrhi7MXKY7anrzr7A
 
You must log in or register to reply here.
Back
Top