Respuesta :

Given

n = 2000

p = 13% = 0.13

margin of error = 4% = 0.04

Find

If the confidence level is 90% what is the value of a.

Explanation

From the given information ,

p = 0.13

q = 1 - 0.13 = 0.87

margin of error = 0.04

confidence level = 90% = 0.90

[tex]\begin{gathered} \alpha=1-0.90 \\ \alpha=0.10 \end{gathered}[/tex]

Final Answer

Hence , the value is 0.10