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Mathematics 9 Online
OpenStudy (mayrapa123):

What is the z-score with a confidence level of 95% when finding the margin of error for the mean of a normally distributed population from a sample? 0.99 1.65 1.96 2.58

OpenStudy (loser66):

put it into your calculator to get the answer.

OpenStudy (mayrapa123):

How??

OpenStudy (loser66):

on Ti 83 plus hit 2nd, then VARS, on the menu dropped out, choose 3: invNorm , input 0.975,0,1 then enter, it gives you the answer

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