Answer:
The confidence level for this case is 96% or 0.96, then the significance level would be:
[tex]\alpha = 1-0.96 =0.04[/tex]
And then [tex]\alpha/2 =0.02[/tex]. We need to find a critical value who accumulates 0.02 of the area on each tail and we got:
[tex]z_{\alpha/2}=\pm 2.054[/tex]
Step-by-step explanation:
The confidence level for this case is 96% or 0.96, then the significance level would be:
[tex]\alpha = 1-0.96 =0.04[/tex]
And then [tex]\alpha/2 =0.02[/tex]. We need to find a critical value who accumulates 0.02 of the area on each tail and we got:
[tex]z_{\alpha/2}=\pm 2.054[/tex]
