Asked by Webster85

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.
my answer .44 .

(b) Determine the value of the confidence coefficient z(á/2) for 1 - á = 0.91.
my answer 0.46.

Answers

Answered by MathGuru
For one tail, your answers look okay. For two tails, the values would be multiplied by 2.
Answered by Tom 12
So I used these answers .44 for the first one and it was wrong then I multiplied 0.46 and used 0.92 and that one was wrong. Any suggestions??
Answered by Tom 84
We have been at this question for three hours and each time we each come up with different answers...

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