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help for ztail
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Normal distribution demonstration ---------------------------------

ztail prob tails

Description -----------

ztail displays a standard normal distribution with vertical lines marking the tails with an area of prob. Use tails = 1 for a one-tailed region; tails = 2 for a two-tailed region.

Examples --------

. ztail .05 1 . ztail .05 2

Author ------

Philip B. Ender UCLA Department of Education UCLA Academic Technology Services enderatucla.edu