Confidence interval

Rich Sieger ( (no email) )
Wed, 11 Aug 1999 16:00:47 -0700

Here's a work application. My company wants to test our data for Y2K =
compliance. The systems guy wants to test 1% of the data (3200 of 320000 =
policies). Would the 3200 policies (1% of data) predict the validity of =
our Y2K conversion with 90% accuracy? i.e. is this within the 90% =
confidence interval? If not, what percentage of data would represent the =
data with 90% accuracy?

Thanks,

Rich Sieger

richsieger@cnico.com