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A day full of math games & activities. Find one near you.
Find the value of z subscript alpha divided by 2 (Zα/2) that corresponds to a confidence level of 89.48%.
Solution:
Given, confidence level c = 89.48%
c in decimal = 89.48 / 100 = 0.8948
Significance level, 𝛼 = 1 - c
𝛼 = 1 - 0.8948
𝛼 = 0.1052
Now, we have to find the value of Z𝛼 /2
𝛼 / 2 = 0.1052 / 2 = 0.0526
Now, find the z-value for 𝛼 / 2 = 0.0526
Using z table,
Zα / 2 = ± 1.620
Therefore, the value of z subscript alpha divided by 2 is ± 1.620
Find the value of z subscript alpha divided by 2 (Zα/2) that corresponds to a confidence level of 89.48%.
Summary:
The value of z subscript alpha divided by 2 (Zα/2) that corresponds to a confidence level of 89.48% is ± 1.620.
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