brosius -loss development using credibility

bill g ( billg799@yahoo.com )
Wed, 19 May 1999 05:02:04 -0700 (PDT)

page 18 brosius middle of paper. reported loss ratio 36 month column.

avg(x)=.216;avg(y)=.405;avg(x^2)=.062;avg(x*y)=.106 so

b = (avg(x*y)-avg(x)*avg(y))/((avg(x^2)-(avg(x))^2); so

b= (.106-.215*.405)/(.062-(.216)^2) = 1.23; but the paper says b=1.162
does anyone know where 1.162 was derived from???

thanks for your help

bill g

billg799@yahoo.com

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