$\mathrm { H } _ { 0 } : \mu = 8.6$

Multiple Choice

$\mathrm { H } _ { 0 } : \mu = 8.6$
$\mathrm { H } _ { 1 } : \mu \neq 8.6$

A) Two-tailed, $\mu$
B) Two-tailed, $\bar { x }$
C) Right-tailed, $\mu$
D) Left-tailed, $\overline { \mathrm { x } }$