A Random Sample of 51scores Is Collected with a Sample $\begin{array}{l}H_{0}: \sigma^{2}=7 \\H_{1}: \sigma^{2} \neq 7\end{array}$

Essay

A random sample of 51scores is collected with a sample mean of 75 and a sample variance of 10. Test the following hypotheses at the .05 level of significance:
$\begin{array}{l}H_{0}: \sigma^{2}=7 \\H_{1}: \sigma^{2} \neq 7\end{array}$