Friday, January 20, 2012

confidence interval

confidence interval for population proportion (P) is

( p - (z)sqrt(pq/n) , p + (z)sqrt(pq/n) )

where z is the table value corresponding to the required confidence level, (two tailed)
p the sample proportion , q = 1 - p
n = sample size

please leave your comments below
index of math problems

There is no guarantee about the data/information on this site. You use the data/information at your own risk. You use the advertisements displayed on this page at your own risk.We are not responsible for the content of external internet sites. Some of the links may not work

No comments:

Post a Comment

please leave your comments