State the Appropriate Null and Alternative Hypothesis and Find the Critical

Multiple Choice

State the appropriate null and alternative hypothesis and find the critical value for a right-tailed test with $\alpha = 0.05$ and $n = 18$ . Use $\sigma ^ { 2 } = 256$ .

A) $\mathrm { H } _ { \mathrm { O } } : \sigma 2 = 256$
$\mathrm { H } _ { 1 : } \sigma ^ { 2 } > 256$
C. $\mathrm { V } . = 27.587$

B) $\mathrm { H } _ { \mathrm { O } : } \sigma ^ { 2 } = 256$
$\mathrm { H } _ { 1 : } \sigma ^ { 2 } > 256$
C. $\mathrm { V } . = 28.869$

C) $\mathrm { H } _ { \mathrm { O } } : \sigma 2 = 256$
$\mathrm { H } _ { 1 : } \sigma ^ { 2 } < 256$
C. $\mathrm { V } . = 27.587$

D) $\mathrm { H } _ { \mathrm { O } } : \sigma ^ { 2 } \neq 256$
$\mathrm { H } _ { 1 : } \sigma ^ { 2 } < 256$
C. $\mathrm { V } . = 28.869$