Mathematics: Find the value Z a/2 needed to construct a confident interval with the given level of 99.7%

Find the value Z a/2 needed to construct a confident

danikachild122

30.07.2021

The critical value is $Z_{\frac{\alpha}{2}} = 2.96$

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:

$\alpha = \frac{1 - 0.997}{2} = 0.0015$

Now, we have to find z in the Z-table as such z has a p-value of $1 - \alpha$ .

That is z with a pvalue of 1 - 0.0015 = 0.9985 , so Z = 2.96.

The critical value is $Z_{\frac{\alpha}{2}} = 2.96$

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alsk101

08.03.2022

x≥5

Step-by-step explanation:

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