Confidence Band question

I have a entry-level question about confidence band of standard normal
distribution.


According to the following webpage, for a standard normal distribution,

"...The critical values at the 5% significance level are -0.087 and
0.087..."
http://www.itl.nist.gov/div898/handbook/eda/section4/eda4283.htm


While on another webpage of the same site:
http://www.itl.nist.gov/div898/handbook/eda/section3/autocopl.htm
there is a formula to calculate the confidence band.


+/- z(1-alpha/2)/sqrt(N)


Say, alpha=0.05 ->z(1-alpha/2)=1.96
given the sample size N=195 (quoted from the first webpage)
I should have a confidence band (-0.14,0.14).
What did I do wrong? Where is the band (-0.087,0.087)from?


Thanks for your help!

.

Relevant Pages

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    ... I have a entry-level question about confidence band of standard normal ... According to the following webpage, for a standard normal distribution, ...
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    ... > I have a entry-level question about confidence band ... > According to the following webpage, ... > normal distribution, ... > there is a formula to calculate the confidence band. ...
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