$$\text { Find the critical value } z _ { \alpha / 2 } \text { needed to construct a(n) } 79 \% \text { confidence interval. }$$

Multiple Choice

$$\text { Find the critical value } z _ { \alpha / 2 } \text { needed to construct a(n) } 79 \% \text { confidence interval. }$$

A) 1.25
B) 0.97
C) 0.81
D) 1.98