# Math check

posted by
**Sue 8** on
.

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