Question: 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

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

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