SOLUTION: Find the critical value zα/2 that corresponds to the confidence level 87%.
zα/2 = __
(Round to two decimal places as needed.)
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Question 1182737: Find the critical value zα/2 that corresponds to the confidence level 87%.
zα/2 = __
(Round to two decimal places as needed.)
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
if the confidence level is 87%, that means the alpha = 1 minus .87 = .13.
alpha / 2 is therefore equal to .065.
the critical z-score will therefore be plus or minus 1.514101887.
this can be seen in the following displays using the z-score calculator that can be found at https://davidmlane.com/hyperstat/z_table.html
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