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Xelga [282]
3 years ago
10

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

Mathematics
1 answer:
tester [92]3 years ago
7 0

Answer:

z = 1.476

Step-by-step explanation:

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

\alpha = \frac{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

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