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Find the z a/2 critical value needed to construct a confidence interval with level .The critical value for the confidence level 90% is.......


( round to two decimal places )

Respuesta :

Using the z-distribution, the critical value for a confidence level of 90% is of Z = 1.65.

What is the critical value for a 90% confidence interval using the z-distribution?

In this problem, we have a 90% confidence level, hence[tex]\alpha = 0.9[/tex], z is the value of Z that has a p-value of [tex]\frac{1+0.9}{2} = 0.95[/tex], so the critical value is z = 1.65.

More can be learned about the z-distribution at https://brainly.com/question/25890103

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