Step 1 :State the null hypothesis $H_{0}$ and the alternative hypothesis $H_{1}$ for the test.
Step 2 :$H_{0}$: The variance of the lifetimes of electric bulbs manufactured by BIG Corporation is 14,641.
Step 3 :$H_{1}$: The variance of the lifetimes of electric bulbs manufactured by BIG Corporation is less than 14,641.