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

Question

(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.
.45 my answer

Answer 1

To late to get any help, But thanks