## Introductory Statistics 9th Edition

$\mu$ =2300 square feet, σ =500 square feet, n = 25 $\mu$ = $\mu$ _${\bar{x}}$= 2300 square feet. $\sigma_{\bar{x}\ }$ = $\frac{σ}{\sqrt n}$ = $\frac{500}{\sqrt 25}$ = 100