ommerence
XA
Question 6 of 12
Which of the following is the upper critical value fz (z^ * ) for an 80% confidence interval?
A. 2.33
B. .84
C. 1.96
D. 1.45
Ε. 1.28
XA
Question 6 of 12
Which of the following is the upper critical value fz (z^ * ) for an 80% confidence interval?
A. 2.33
B. .84
C. 1.96
D. 1.45
Ε. 1.28