please help

Stephan An independent consumer group published it's finding that the lifetimes of electric bulbs manufactured by BIG Corporation are approximately normally distributed with a mean of 700 days and a variance of 15,625. BIG Corporation claims that the variance of it's electric bulbs is less than 15,625. Suppose that we want to carry out a hypothesis test to see if BIG Corporation's claim is correct. State the pull hypothesis Ho and the alternative hypothesis #, that we would use for this test. Ho: D P H: 0 O S OSO 0>0 020