"Bobby" wrote:
What are the confidence intervals that the standard
deviation function produces? In other works, if the
mean is 22% and the standard deviation is 34%,
what % of would be expected to fall between 56%
and -12%?

One way to compute these is:
normsdist(Z2)-normsdist(Z1), where Z2 = (56% - 22%)/34%
and Z1 = (-12% - 22%)/34% (z-scores).

Alternatively:
normdist(H,mean,sd,1)-normdist(L,mean,sd,1),
where mean is 22%, sd is 34%, H is 56% and L is -12%
(high and low endpoints).