An independent consumer group published its finding that the lifetimes of electric bulbs manufactured by BIG…

An independent consumer group published its finding that the lifetimes of electric bulbs manufactured by BIG Corporation are approximately normally distributed with a mean of 690 days and a variance of 14762.25. BIG Corporation claims that the variance of its electric bulbs is less than 14762.25. Suppose that we want to carry out a hypothesis test to see if BIG Corporation’s claim is correct. State the null hypothesis H and the alternative hypothesis H, that we would use for this test. H H н. ‑ X о O