Sampling and Estimation someone, standard, following, amount

Spongebob

When do you use the following:

1) Point estimate (+/-) Reliability factor X Standard of error

2) X (+/-) X(alpha/2) X (standard deviation/square root of n)

I think it has to do with the amount of information that is given...can someone pls confirm?



Edited 1 time(s). Last edit at Thursday, December 3, 2009 at 09:13PM by gazhoo.