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 610 days and a standard deviation of 122.5. BIG Corporation claims that the standard deviation of its electric bulbs is less than 122.5. 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: D H₁: 0 μ 6 X O Р S D

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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 610 days and a standard deviation of 122.5. BIG Corporation claims that the standard deviation of its electric bulbs is less than
122.5. 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.
Ho: O
H₁: 0
μ
p
OSO
-
X
X
O
>O
E
S
Р
S
<D
O
Transcribed Image Text: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 610 days and a standard deviation of 122.5. BIG Corporation claims that the standard deviation of its electric bulbs is less than 122.5. 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. Ho: O H₁: 0 μ p OSO - X X O >O E S Р S <D O
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