Question Help Find the critical value z Subscript czc necessary to form a confid

Question

Question Help    Find the critical value z Subscript czc necessary to form a confidence interval at the level of confidence shown below. cequals=0.93 z Subscript czcequals= nothing (Round to two decimal places as needed.) Question Help    Find the critical value z Subscript czc necessary to form a confidence interval at the level of confidence shown below. cequals=0.93 z Subscript czcequals= nothing (Round to two decimal places as needed.) Question Help    Find the critical value z Subscript czc necessary to form a confidence interval at the level of confidence shown below. cequals=0.93 z Subscript czcequals= nothing (Round to two decimal places as needed.)

Explanation / Answer

Zc = ?

For a 93% Confidence interval we need to have 46.5% along the mean, both sides of it.

So, in shory Zc should be the Z corresponding to Z for .965. which according to Z tables is a 1.81

So, +/- 1.81 is the Zc value.

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