Posted by **Brittany** on Saturday, May 26, 2012 at 11:13pm.

Find the number z (± 0.01) such that the proportion of observations that are less than z in a standard Normal distribution is 0.8

Find the number z (± 0.01) such that 59% of all observations from a standard Normal distribution are greater than z

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**PsyDAG**, Monday, May 28, 2012 at 11:28am
It would help if you proofread your questions before you posted them. Your questions are not clear. I do not understand what you are asking.

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**Brittany**, Thursday, May 31, 2012 at 8:01pm
I posted this question straight from the quiz, so I'm not sure why you're confused.

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