Chapter 18 - Inference in Practice - Apply Your Knowledge - Page 424: 18.10

n = 9 -> 4.408 to 5.192 n = 16 -> 4.506 to 5.094 n = 36 -> 4.604 to 4.996 n = 64 -> 4.653 to 4.947

x - $z_{a/2}$ $\times$ $\frac{o}{\sqrt n}$ to x + $z_{a/2}$ $\times$ $\frac{o}{\sqrt n}$ 4.8 - 1.96 $\times$ $\frac{.6}{\sqrt n}$ to 4.8 + 1.96 $\times$ $\frac{.6}{\sqrt n}$