Compute the critical value z Subscript alpha divided by 2 that corresponds to a 86% level of confidence.

Question

asked Mar 8, 2021 213k views

1 Answer

Fabian Lange · Answer 1 · 2021-03-15T06:02:52+0000

Answer:

z = 1.476

Explanation:

We have that to find our
$\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = (1-0.86)/(2) = 0.07$

Now, we have to find z in the Ztable as such z has a pvalue of
$1-\alpha$ .

So it is z with a pvalue of
1-0.07 = 0.93 , so
z = 1.476

The answer is z = 1.476