Find the critical value zα/2 that corresponds to the given confidence level.

Question

Question

86%

zα/2= _______ (Round to two decimal places as needed.)

Answer 1

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Answer #1

Solution :

At 86% confidence level

= 1 - 86%

= 1 - 0.86 = 0.14

/2 = 0.07

Z_/2 = Z_0.07 = 1.476

Critical value = Z_/2 = 1.48

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Answer 2

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