What is the confidence level of each of the following confidence intervals for u?
x+/-1.96(o/SR N)
ht t p : / / w w w . a l l i a n t h a w k . o r g / i m a g e s / C ON F I D e n c e _i nt e r v a l _ n o_ b ac k g r o u n d . g i f
it looks like that, and I don't know what x, n or o is =/