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January 25, 2015

January 25, 2015

Posted by **Jessica** on Monday, January 21, 2013 at 8:23pm.

- math -
**PsyDAG**, Tuesday, January 22, 2013 at 5:42pmIt would seem that you are only concerned with packages that would take

*longer*than normal time to delivered. "Beyond" could infer either direction.

95% = mean + 1.645 SD

Insert value and solve.

If it were either direction:

95% = mean ± 1.96 SD

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