Posted by **Sue 8** on Thursday, June 13, 2013 at 12:46am.

Consider the following. (Give your answers correct to two decimal places.)

(a) Determine the value of the confidence coefficient z(á/2) for 1 - á = 0.87.

=.44 my answer .

(b) Determine the value of the confidence coefficient z(á/2) for 1 - á = 0.91.

=.46 my answer

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